Find the perimeter of the shaded region if ABCD is a square of side 21 cm and APB & CPD are semicircles. (Use π=22/7).
Sajal08:
Where is the diagram?
Answers
Answered by
5
Area of (APB + CPD) = (22/7) x 10.5 x 10.5 = 346.5
Area of ( ABCD ) = 21 x 21 =441
Shaded area = 441-346.5
= 94.5
Answer : 94.5
Area of ( ABCD ) = 21 x 21 =441
Shaded area = 441-346.5
= 94.5
Answer : 94.5
Answered by
0
97.5 cm^2 is the area of the shaded region.
Step-by-step explanation:
Given,
Side of the square = 21cm
Since ABCD is a square,
Area of the square = S^2
= 21 * 21
= 441 cm^2
Area of semicircle = 1/2πr^2
= 1/2(21/2)^2
= 1/2 * π * 10.5 * 10.5
= 1/2 * 22/7 * 110.25
= 173.25
Area of both the semicircles = 2 * 173.25
= 346.5
Area of the shaded region = Area of the square - Area of both the semicircles
= 441 - 346.5
= 97.5 cm^2
Learn more: Find the perimeter
brainly.in/question/15859131
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