Question

The diameter of a circle is 8 units. What is the area of the circle if the diameter is doubled?​

Answer 1

Answer :-

• Area of circle = 50.24 Units

Given :-

• First Diameter (d₁) = 8 units

To Find :-

• Area of circle = ?

Explanation :-

As above given, the diameter of the circle is doubled.

Finding new diameter,

$\blue { \boxed { \bf \bigstar \; New \: Diameter = 2 \times Old \; Diameter \; \bigstar }}$

$\sf : \; \longmapsto 2 \times 8 \; \; units$

$\green { \sf : \; \longmapsto 16 \; \; units \qquad \star }$

Finding area of circle,

$\pink { \boxed { \bf \bigstar \; Area \; of \; circle = \pi r^2 \; \bigstar }}$

$\sf : \; \longmapsto 3.14 \times (\dfrac{8}{2})^2$

$\sf : \; \longmapsto 3.14 \times (4)^2$

$\sf : \; \longmapsto 3.14 \times 4 \times 4$

$\sf : \; \longmapsto 3.14 \times 16$

$\red { \underline { \boxed { \sf : \; \longmapsto 50.24 \; \; units }}}$

Hence, the area of circle is 50.24 units when the diameter is doubled.

Answer 2

Answer:

A≈50.27

Step-by-step explanation:

A≈50.27

Diameter 8