Question

5. If the perimeter of a semicircular protractor is 72 cm, find its radius.

OR

​

Answer 1

Step-by-step explanation:

perimeter of semicircle is πr

therefore πr=72

r=72/22*7

r=22.9 cm

Answer 2

$\huge{ \frak{ \fcolorbox{orange}{blue}{ \fcolorbox{red}{pink}{answer}}}} = >$

$\huge{ \green{ \ddot{ \smile}}}$

_______________________

perimeter of semicircle=πr

πr=72

$r = \frac{72}{ \pi} \\ \\ = > r = \frac{ \frac{72}{22} }{7} \\ \\ = > r = \frac{504}{22}\\ \\ r = \sf{ \cancel{ \dfrac{504}{22}}}22.9 \\ \\ = > r = 22.9$

____________________

hops this may help you

$\huge{ \purple{ \ddot{ \smile}}}$

$\huge \blue{ \mathfrak{thanks♡</p><p>}}$

$<marquee direction="up"> hops this may help you</p><p>mark my answer as brainliest ❣️<marquee/>$

$<marquee direction="right">(◠‿・)—☆ <marquee/>$