area of a semicircle with perimeter 864
Answers
Answered by
1
Answer:
Answer
Perimeter of a semi circular plate =πr+2r
Given, πr+2r=86.4
=>r(π+2)=86.4
=>r=
π+2
86.4
=>r=
7
22
+2
86.4
=>r=
7
36
86.4
=>r=
36
86.4×7
=>r=16.8 cm
Area of a semi circle =
2
πr
2
=
7×2
22×16.8
2
=443.52cm
2
Answered by
2
Answer:
29717.2 will be the answer
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