Question

Find the perimeter of a given fig, where AED is a semicircle and ABCD is a rectangle .

Answer 1

SOLUTION:

From the GIVEN figure we have:
Length = AB = DC = 20 cm
Breadth = BC = AD = 14 cm
Radius of semicircle, (r)= AD/2 = 14/2= 7 cm.

Circumference of semicircle (AED)= πr = (22/7) × 7 = 22 cm

Perimeter of the given figure = AB + BC +CD + Circumference of semicircle
Perimeter of the given figure = 20 +14 +20 + 22 = 76 cm.

Hence, the Perimeter of the given figure is 76 cm.

HOPE THIS WILL HELP YOU…

Answer 2

THE ANSWER IS

BY ADDING ALL THE PERIMETERS I.E.,

BC+ AB+ DC+ AED( PERIMETER OF SEMICIRCLE)

= 20+20+14+Πr

= 40+14+22\7*7

= 54+22

= 76 cm.

I think it will help you!!!!!!!!!!!