CIRcles....O....O.....O....O...O..

a wire of length 25cm is bent so as to lie along the arc of a circle of did 100cm. the angle subtended at the centre by the arc is....?????
a)π
b)π/2
3)π/4
d)π/8
plzz...show that how u arrived at that answer....
thanks in advance...:)

3 Answers

206
Sayantan Hazra ·

119
Vinayak Agrawal ·

Using the formula,

25=θ360*π100
or, 25=5θπ18
or,θ=25*18*75*22
or, θ=31511°

206
Sayantan Hazra ·

Use the formula for length of arc of an circle to find the angle subtended at the centre...........:)

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