Perimeter of a semicircular protractor whose radius is 7 cm is
Select one:
a. 72 cm
b. 18 cm
C. 36 cm
d. 27 cm
pls ans me fastly
Answers
The perimeter of a semicircular protractor is 36 cm whose radius is 7 cm
Given:
- Semicircular Protractor with radius 7 cm
To Find:
- Perimeter
Solution:
Circumference of Circle = 2π(Radius)
Circumference of semi circle = π(Radius)
Diameter of Circle = 2 (Radius)
Step 1:
Perimeter of a semicircular protractor is circumference of semicircle + Diameter
Step 2:
Find circumference of semicircle using π = 22/7 and Radius 7 cm
= π (Radius)
= (22/7) * 7
= 22 cm
Step 3:
Find Diamter using Radius 7 cm
= 2 x7
= 14 cm
Step 4:
Calculate Perimeter of a semicircular protractor by adding circumference of semicircle and Diameter
22 + 14
= 36 cm
The perimeter of a semicircular protractor is 36 cm whose radius is 7 cm
Correct option is C) 36 cm
Learn more:
the perimeter of a semicircular protractor with diameter 10cm ...
brainly.in/question/13217507
The perimeter of a semicircular protractor is 108cm. Find the ...
brainly.in/question/7977109