Question

the area of the sector of a circle of radius 'r' units making a central angle of 45⁰ is​

Answer 1

Answer:

here,

central angle = ß

radius = r unit

area of sector

$= \frac{\pi {r}^{2} \beta }{360} \\ = \frac{\pi {r}^{2} \times 45 }{360} \\ = \frac{\pi {r}^{2} }{8} \: {unit}^{2} .$

Answer 2

Answer:

★Given:

• Radius = r

• Central angle = 45°

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★Find:

• Area of sector

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★Solution:

$\implies \dfrac{\theta \times \pi {r}^{2} }{360}\\\\\\\implies \frac{45 \times \pi {r}^{2} }{360}\\\\\\\implies \frac{\pi {r}^{2} }{8}units$

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