Find the perimeter of this semi-circle with diameter, d = 39cm. Give your answer rounded to 1 DP.
1 answer:
Answer:
p=1/2*3.14+d
1/2*3.14*19.5=30.615
=30.615+39
=69.615
=69.6
Step-by-step explanation:
since it's half a circle we take the formula of acricle to be half
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