Question

If the diameter of a semi-circular protractor is 14 cm, Find its perimeter.​

Answer 1

Answer:

36 m

Step-by-step explanation:

Diameter of semicircle protractor = 14 cm

Radius = D/2 = 14/2 => 7 cm

Perimeter of semicircle protractor = (πR+2R) =

=>22/7 × 7 + 2 × 7

=> 22 + 14 => Diameter of semicircle protractor = 14 cm

Radius = D/2 = 14/2 => 7 cm

Perimeter of semicircle protractor = (πR+2R) =

=>22/7 × 7 + 2 × 7

=> 22 + 14 => 36 m

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Answer 2

Answer:

Diameter of semi-circular = 14cm

radius = 7cm

$(r = \frac{d}{2} )$

perimeter= πr + 2r

$= \frac{22}{7} \times 7 \times 7 \times 7$

$= 22 + 4 = 36cm$

Step-by-step explanation:

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