If the perimeter of a semicircular protractor is 36 cm, then find its radius.
Jhampakia:
it is 11.4 cm
sorry but the answer is 7
it is given
but how??
i don't know
i think the formula is
pi*r+d
okay then
good night
good nyt
Answers
Answered by
3
formula is - pie R +2R
pie R+2R=36
R(PIE+2)=36
R(36/7)
R=36x7/36
R=7 cm
pie R+2R=36
R(PIE+2)=36
R(36/7)
R=36x7/36
R=7 cm
AP for multiples of 3=3,6,9,12...........27
a=9 d=3. last term = 27
n/2[a+l]
9/2[3+27]
9/2 x 30
9 x 15
135= ans
thnqq
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Answered by
2
here is ur answer
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