Question

Find the area and the perimeter of the following figures

Answer 1

Area Of Figure = 77 cm²

Perimeter Of Figure = 36 cm

Step-by-step explanation:

GIVEN

Diameter Of Semicircle = 14 cm

___________________________

TO FIND

Area

Perimeter

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We know that,

Diameter = 2 × Radius

Radius = Diameter / 2

Radius = 14 / 2

Radius = 7

Radius = 7 cm

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Area Of Figure

We know that,

Area Of Semicircle = ½ × π × r²

Area Of Semicircle = ½ × 22/7 × 7²

Area Of Semicircle = ½ × 22/7 × 49

Area Of Semicircle = ½ × 22 × 7

Area Of Semicircle = 0.5 × 22 × 7

Area Of Semicircle = 77

Area Of Semicircle = 77 cm²

Area Of Figure = 77 cm²

___________________________

Perimeter Of Figure

We know that,

Perimeter Of Semicircle = ( π × r ) + ( 2 × r )

Perimeter Of Semicircle = ( 22/7 × 7 ) + ( 2 × 7 )

Perimeter Of Semicircle = 22 + 14

Perimeter Of Semicircle = 36

Perimeter Of Semicircle = 36 cm

Perimeter Of Figure = 36 cm

Answer 2

Answer:

Perimeter=36cm, Area= 77cm^2

Step-by-step explanation:

Hiii MATe ☺☺

Perimeter of semi circle =2πr*1/2 +d

=2*22/7*7*1/2+14

=22+14

=36cm

Area of semicircle =πr^2*1/2

                              =77cm^2  

 

Hope it helps you