Perimeter of protactor is 36. Find its area?
BrainlyYoda:
is the question right????
yep
see.. protectore is a semi circle.. so u can easily find the area if perimeter is given
actually i know it
:) GUd
Answers
Answered by
0
2πr = 36
6.28r = 36
r = 36/6.28 = 5.73 unit
Area of semi circle = πr²/2
= 3.14 * 5.73 * 5.73/2 = 51.54 unit²
6.28r = 36
r = 36/6.28 = 5.73 unit
Area of semi circle = πr²/2
= 3.14 * 5.73 * 5.73/2 = 51.54 unit²
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Answered by
0
perimeter of protractor(its semi-circle) = 36
2 π r = 36
2
22/7 * r = 36
r = 36 * 7/22
r = 11.45
area of protractor = π * r*r
= 22/7 * 11.45 * 11.45
= 411.66 cm square
2 π r = 36
2
22/7 * r = 36
r = 36 * 7/22
r = 11.45
area of protractor = π * r*r
= 22/7 * 11.45 * 11.45
= 411.66 cm square
ur area formula is wrong.. crct it
it will b pi*r*r*/2
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