Find the circumference of the following figure, which is a semicircle having (2) a diameter of 42cm. Take = 22 7
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Answers
Answered by
0
Answer:
Diameter=10cm
∴ Radius=210=5cm
According to question,
Perimeter of figure=Circumference of semi-circle+ diameter
=πr+D
=722×5+10=7110+10
=7110+70=7180=25.71cm.
Thus, the perimeter of the given figure is 25.71cm
Answered by
1
Answer:
66cm
Step-by-step explanation:
D = 42 cm
r = D/2
r = 42/2 = 21cm
Circumference of a semi-circle is 2pie X r/2
2 X 22/7 X21 /2
2 X 11 X 3
66cm
The circumference is 66 cm
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