Question

An equilateral triangle of side 5 cm., is cut out from any one
of the edges of a rectangular piece of paper of size 25 cm. x 50 cm. Find
the perimeter of the remaining part of the paper.​

Answer 1

Answer:

⇒ Draw a line segment AB=4.5cm

⇒ Take B as center and draw an angle of 60

⇒ Cut off BC=5.5cm

⇒ Take A as with radius 4.8cm and draw an arc.

⇒ Take C as with radius 5cm and draw an arc, which cuts off previous arc at point D

⇒ Join CD and AD.

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