Question

find the perimeter ofa semicircle whose radious is 10 cm and also find its diametet​

Answer 1

Answer:

here, radius =10cm

so, diameter=2r=2×10=20cm

Perimeter of semicircle

=πr+d

=3.14×10+20

=31.4+20

=51.4 cm

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Answer 2

Answer:

A = 78.5  cm

2 C = 30.9 cm