Question

if the diameter of a semicircular protractor is 14 cm then find its perimeter​

Answer 1

Answer:

36cm

Step-by-step explanation:

since diameter is 14cm,

radius is 7cm

perimeter of semicircle is πr + 2r

thus perimeter is $\frac{22}{7}$*r + 2* r

perimeter is $\frac{22}{7}$ * 7 + 2 * 7

perimeter= 22 + 14

perimeter = 36 cm

hope it helps

and if it does pls mark as the brainliest

Answer 2

✯ Question ✯

If the diameter of a semicircular protractor is 14 cm then find its perimeter .

$\rule{100}{0.5}$

✯ Answer ✯

Given

• Radius of Protector (R) = 14 cm

To Find

• Perimeter

Solution

Radius = Diameter/ 2 = 14/2 = 7 cm

Use formula Circumference for Semicircle :

_________________________________

|| Circumference = πr + r ||

–—–—–—–—–—–—–—–—–—–—–

⇒Circumference = 22/7 * 7 + 7

⇒Circumference = 22 + 7

Circumference is 28 cm