Question

* 15. (Take it = 3.14) Find the perimeter of the adjoining figure, which is a semicircle including Nits diameter. tor 16 m if​

Answer 1

» Appropriate Question:

Find the perimeter of the adjoining figure which is a semi-circle if it's diameter is 16cm. (Take $π$ = 3.14)

» Solution:

Radius of the given semi-circle

= 8cm

Circumference of given semi-circle

= $(πr + 2r)$

$= [(3.14×8) + (2×8)]$

$\red{= 41.12cm}$

Hence, the circumference is 41.12 cm!!

» Additional Information:

• $\mathtt{Circumference_{(semi-circle)} = (πr + 2r)}$
• $\mathtt{Circumference_{(circle)} = 2πr}$

» Note:

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