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Question

Draw ΔCAR in which CA=8cm, A=60 and AR=8cm. Measure angle C. What kind of triangle is this ?

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Solution

Steps of construction:
1. Draw a line segment AB=8 cm

2. Draw a ray make angle 60 at the centre A.

3. Draw an arc with radius 8 cm on the ray, which intersects the ray at C.

4. Join RC.

Hence, required triangle CAR formed.


As AC=AR hence
C=R=θ(say)
then 60o+θ+θ=180
2θ=120 or θ=60
Hence, it is a equilateral triangle.

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