If the diameter of a semi-circular
protractor is 14 cm, then find its
perimeter; (π=22/7)
Answers
Answered by
5
Diameter = 14cm
then, radius =14÷2 = 7cm
area of semi circle = pi× r^2÷2
= 22÷7×7×7÷2
= 77cm^2
then, radius =14÷2 = 7cm
area of semi circle = pi× r^2÷2
= 22÷7×7×7÷2
= 77cm^2
Answered by
1
perimeter of semicircular protector =diameter +length of arc
length of arc=22/7×7=25cm
perimeter =22+14=34cm
length of arc=22/7×7=25cm
perimeter =22+14=34cm
ANWAR21:
sorry length of arc=22cm
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