Question

Assertion: Perimeter of a semicircle is πr, where r is the radius of the circle.
Reason: Perimeter is the boundary of any geometrical shape.
a) Both (A) and (B) are true and (R) is the correct explanation of (A).
b) Both (A) and (B) are true and (R) is not the correct explanation of (A).
c) (A) is correct and (R) is wrong.
d) Both (A) and (B) are wrong.
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Answer 1

The perimeter of a semicircle formula = (πR + d) or (πR + 2R) units, or R(π + 2).

hope its help u

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sis

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Answer 2

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B) Both (A) and (B) are true and (R) is not the correct explanation of (A)

because in assertion it is.. written about semicircle and.. in reason its not saying anything about how semicircles perimeter becomes 2π