Step-by-step explanation:
Circumference of semicircle=2r+πr
=2(
2
10
)+
7
22
×
=10+
110
=
70+110
180
=25.71
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Verified answer
Step-by-step explanation:
Circumference of semicircle=2r+πr
=2(
2
10
)+
7
22
×
2
10
=10+
7
110
=
7
70+110
=
7
180
=25.71