Question

.Calculate the area of a circle of diameter 28cm. Use the value of 22/7 for π

Answer 1

${\red{\underline{\underline{\bold{Given:-}}}}}$

• Diameter of circle = 28cm

${\blue{\underline{\underline{\bold{To\:Find:-}}}}}$

• The area of the circle

${\green{\underline{\underline{\bold{Solution:-}}}}}$

Diameter = 28cm

Radius =

$\frac{diameter}{2} \\ \\ = \frac{28}{2} = 14cm$

Area of circle = $\pi {r}^{2}$

$= \frac{22}{7} \times 14 \\ \\ = 44 {cm}^{2}$

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Formulas used:-

• Radius = $\frac{Diameter}{2}$

• Area of circle = $\pi {r}^{2}$

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${\pink{\underline{\underline{\bold{Additional\: Information:-}}}}}$

• Area of rectangle = length×breadth

• Area of square = ${length}^{2}$

• Area of triangle = $\frac{1}{2}×base×height$

• Area of rhombus = $\frac{1}{2}×d1×d2$

Answer 2

Answer:

hope it will help you dude.....