please help me with the 5th question
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Answered by
3
Answer:
Solution: Given, diameter of the semicircle = 10cm.
Circumference of the circle
=
π
D
=
3.14
×
10
=
31.4
So, perimeter of semicircle
=
31.4
÷
2
=
25.7
cm
Perimeter of the given figure
=
25.7
+
10
=
35.7
cm
Answered by
1
Answer:
31.4 cm
Step-by-step explanation:
perimeter of a circle =2πr
therefore, perimeter of semicircle=2πr/2=πr
here d=20cm
so, r=20/2=10
perimeter of semicircle=πr
=3.14×10cm
=31.4cm
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