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Triangles - Contenido educativo
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Triangles. Exercise number one. Equilateral triangle giving the side. With the compass, we are going to transport.
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Taking the measurement AB, the whole segment, from A to B, we draw this arc, and from B to A, we draw the same arc.
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Doing that, we will get an equilateral triangle.
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This point you get here is C, and we just draw the equilateral triangle.
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Number two, a scalene triangle given the three sides.
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So, side B is going to be 50 millimeters and side A is going to be 65 millimeters.
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So, considering that side A is going to be in front of vertex A, we are going to draw here a line from B in any direction.
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And on this line, we are going to measure 65, exactly, 65.
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So this is going to be a radius. This is an arrowhead and this is 65. And in front of vertex B, we will place the measurement for side B, lowercase.
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So here, another line in any direction, we measure here. From A in any direction, 5. Arrowhead, 50.
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Once you have both radius, you just have to place the compass on A with 50, till they cross each other, so from A 50 and from B 65, that's it.
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So, the two arches cross each other into vertex C.
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You name the vertex, capital letter, and connect that vertex with A and B.
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Don't forget to name the sides.
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so we are going to name this decide a lowercase C lowercase and B lowercase
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number three isosceles triangle given baseline and height 85 so first thing
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you're going to continue a B to the left or to the right it doesn't really matter
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and we are going to draw here a perpendicular line using a square so here we measure we draw
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a line over there and on top of the line we measure 85 so 85 that's it now using both
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the straight ruler and square we are going to draw a parallel line to AB at 85 millimeters
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height so we have in mind that the first ruler you place on AB the other ruler is going to be
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our guide so you keep this still and draw the parallel moving the square up
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draw the parallel at this height this height we are going to measure like this
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arrow arrow and this is the okay 85 you could also write down 85 would be okay
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great and now considering that the triangle needs to be a socialist we are
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going to draw to place the segment by sector we are going to use the segment
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bisector. So you place a compass on A with any radius. So we can draw, for example, this arc
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and with the same radius from B. And considering we don't have much space here below,
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we are going to do the same but with a smaller radius. So we decrease the radius
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and we are going to draw one arc from B and the same arc from A. They cross each
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other, you can see here, they cross each other there. So we are drawing, we are
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getting here this point at the same distance from A and B and this other
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point at the same distance from A and B so connecting both of them you will get
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the segment bisector and the segment bisector is really useful to place
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vertex C for the isosceles triangle. Now we connect C with B and C with A and we are
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going to name this side as lowercase C, lowercase A in front of A and B in front
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of B. Right-angled triangle given one leg, catheters, and the hypotenuse. So leg is the
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usual name for the catheters in the right-angled triangles. Considering that in right-angled
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triangles, always A is going to be the right angle. We place here the square or the verbal
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and draw the right angle. We don't know the size yet. So here we use the symbol for right
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angle. And in front of A, we will place the hypotenuse. So knowing that the hypotenuse
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is going to be 70, we are going to use a radius here from point B. So you place the
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ruler you place a zero on B and measure 70 with accuracy we place 70 this is 70
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and the arrowhead now with the compass we transport the hypotenuse measurement
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this is 70 and we transfer it on the right angle so doing that you will get C
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uppercase the vertex this is going to be the hypotenuse this will be P one leg C
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E, another leg that is given, and this is A, hypotenuse.
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- Idioma/s:
- Materias:
- Educación Plástica y Visual
- Niveles educativos:
- ▼ Mostrar / ocultar niveles
- Educación Secundaria Obligatoria
- Ordinaria
- Primer Ciclo
- Primer Curso
- Primer Ciclo
- Ordinaria
- Autor/es:
- Publio Pérez Prieto
- Subido por:
- Publio P.
- Licencia:
- Reconocimiento - No comercial - Sin obra derivada
- Visualizaciones:
- 3
- Fecha:
- 26 de junio de 2025 - 10:26
- Visibilidad:
- Público
- Centro:
- IES PEDRO DUQUE
- Duración:
- 10′ 36″
- Relación de aspecto:
- 1.78:1
- Resolución:
- 1920x1080 píxeles
- Tamaño:
- 253.39 MBytes