English, asked by chandankumar351978, 3 months ago

Find the area of the semicircle whose radius = 14cm.​


nksharma88084: Radius of a semicircle, r=14cm
Perimeter of a semicircle, P=(π+2)r units
∴P=(
7
22

+2)×14
=(
7
22+14

)×14=
7
36

×14=72
Perimeter of the semicircle = 72 cm.
Area of a semicircle, A=
2
πr
2


sq. units
∴A=
7
22

×
2
14×14

=308cm
2
.

Answers

Answered by fireking9801
1

Answer:

Area of the Semicircle=1/2πr²

=1/2X22/7X14x14

=11X2X14

=308cm².

Answered by KRRISHGUPTA123
0

Answer:

Area of semicircle =

\pi \: r {}^{2}  \div 2

22 \times 14 \times 14 \div 14

22 \times 14

308 \: cm \: \:  {}^{2}

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