Question

please solve it's urgent​

Answer 1

Answer:

49π÷16, or, 9.621127502,,,,,,

Explanation:

Here, we have:

The Radius (r) = 3.5 unit

The two radii have created a right angle. And we know, the centre of a circle creates a 360° angle. And, a right angle creates a 90° angle.

So, there could be only 4 right angles in a circle (i.e. we can have only four sections like in the picture from a circle).

because, 360°/90° = 4

We know that,

Area of a circle = πr²

so, it's:

= π × (3.5)²

= 49π÷4, or, 38.48451001,,,,,,

But, we will need a single section of it (i.e. 1/4th of the total area.)

So, (49π÷4)÷4

= 49π÷16, or, 9.621127502,,,,,,, (ANS)

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