Question

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Answer 1

Answer:

264/7 ans

Step-by-step explanation:

pi R + pi r + pi r1

pi( R + r + r1)

=pi( 4/2 + 6 + 4)

= 22/7 x 12

= 264/7

as pq = 4cm, pq = qr = qs and ps = 12 cm

Answer 2

1.Find the Circumference of semicircle.

formula is 1/2πr.

2.then minus the circumference of semicircle QRS.

3. add the circumference of semicircle PQ.