Question

answer me b and c fastpy​

Answer 1

Step-by-step explanation:

Fig(b) is a quadrant (1/4 part of circle)

So, the perimeter of fig (b) will be ....

$1\div4\times2\pi r= .5 \times3.14 \times 16 \\ = 25.12mm$

Fig(c) is a pair of rectangle and a semi circle

So, the perimeter will be......

$2(40 + 15 )+ 3.14 \times 20 \\ = 110+ 62.8 = 172.8 {m}$

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