An umbrella has 8 ribs which are equally spaced (see figure). Assuming umbrella to be a flat circle of radius 45 cm, find the area between the two consecutive ribs of the umbrella.
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The area is 22275/28 cm²
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shawnowlcity:
yeah..
for finding area between two consecutive ribs of umbrella we should take 90° as theeta
45+45???
Well the angles of all 8 sectors are equal, so 8 times theeta would be 360,
ohhh thanks bro
bro angle between two ribs, that is angle between two rays, not angle between two sector
hmmm
thanks a lot
anytime bro
im having maths xam tommorow
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hlo
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