Question

plz.. give this both answer​

Answer 1

$\Huge{\underline{\underline{\red{\sf{Answer :}}}}}$

1) Area of sector of a circle of radius r with centre angle as θ is.

Ans - (c) πr²θ/360°

Explanation -

As area of circle is πr² and angle between the circle is θ . So,

Area of Sector = πr² * angle/Complete angle

⇒Area of Sector = πr²θ/360°

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2) If Sinθ = Cosθ . What is value of θ

Ans - 45°

Explanation -

Sinθ = Cosθ

⇒Sinθ/Cosθ = 1

(As value of Tan45° is 1)

⇒Tanθ = Tan45°

⇒ θ = 45°

∴ So, angle is 45°

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