Question

8. Area of a rectangle and the area of the circle are equal. If the dimensions of a rectangle are 14 cm X 11 cm, then radius of circle is

21 cm

10.5 cm

14 cm

7 cm​

Answer 1

Answer:

as area of the rectangle=area of circle

$length \times breadth = \pi {r}^{2} \\ 14 \times 11 = \frac{22}{7} \times {r}^{2} \\ {r}^{2} = (14 \times 11 \times 7) \div 22 \\ {r}^{2} = 49 \\ r = \sqrt{49} \\ so \: r = 7$

I hope it may help you

Answer 2

7 cm

Option D

Answer

$\: \: \:$

Given :

• Area of a rectangle and the area of the circle are equal.
• Dimensions of a rectangle are 14 cm X 11 cm

To find :

• Radius of circle

Formula used :

length × breadth = πr2

Solution :

14 × 11 = ( 22 / 7 )

r² = ( 14 × 11 × 7 )/22

r² = 59

r = √ 49

r = 7 cm

Hence , The Correct Option is Option D 7 cm ✓