If perimeter of semi circular protractor is 54 cm then find diameter
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Heya !!!
Perimeter or semi circle = 54
πR + 2R = 54
R ( π + 2) = 54
R ( 22/7 + 2) = 54
R ( 22 + 14/7) = 54
R × 36 = 54 × 7
R = 54 × 7 /36
R = 10.5
Radius = 10.5 cm
Therefore ,
Diameter = 2 × R = 2 × 10.5 = 21 cm
★ HOPE IT WILL HELP YOU ★
Perimeter or semi circle = 54
πR + 2R = 54
R ( π + 2) = 54
R ( 22/7 + 2) = 54
R ( 22 + 14/7) = 54
R × 36 = 54 × 7
R = 54 × 7 /36
R = 10.5
Radius = 10.5 cm
Therefore ,
Diameter = 2 × R = 2 × 10.5 = 21 cm
★ HOPE IT WILL HELP YOU ★
narendarkaringula:
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