Question

please tell me formulae of area of quadrant

Answer 1

Hola Friend ✋✋✋

We know that ....

Area of sector = πr² × ∅/360°

∅ = 90° in a quadrant

so area of quadrant = 90 / 360 × πr²

$= \frac{\pi {r}^{2} }{4}$
hope it helps

Answer 2

U can derive the area of quadrant as follows.

Area of circle=πr^2
So, area of quadrant= 1/4 x πr^2
=1/4 x 22/7 x r^2
=11/14 x r^2
Or,
(πr^2)/4

Hope it helps you.
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