If the diameter of a semi-circular protractor is 14 cm, then find its perimeter.
Answers
Answered by
32
Answer:
The perimeter of a semicircle protractor is 36 cm.
Step-by-step explanation:
Given :
Diameter of a semicircular protractor ,d = 14 cm
Radius of a semicircular protractor, r = 14/2 = 7 cm
Perimeter of a semicircle protractor ,P = circumference of a semicircle + diameter of a semicircle.
P = πr + d
P = 22/7 × 7 + 14
P = 22 + 14
P = 36 cm
Perimeter of a semicircle protractor = 36 cm
Hence, the perimeter of a semicircle protractor is 36 cm.
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Answered by
8
Answer:
Step-by-step explanation:
Given :
Diameter of a semicircular protractor ,d = 14 cm
Radius of a semicircular protractor, r = 14/2 = 7 cm
Perimeter of a semicircle protractor ,P = circumference of a semicircle + diameter of a semicircle.
P = πr + d
P = 22/7 × 7 + 14
P = 22 + 14
P = 36 cm
Perimeter of a semicircle protractor = 36 cm
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