# What will be the Area of the Circle with Diameter AB? If

A is the center of circle whose radius is 8 and B is the center of a circle whose diameter is 8. If these two circles touch externally, then the area of the circle with diameter AB is

- 36 pai
- 64 pai
- 144 pai
- 256 pai

**Answer: (1) 36 pai**

**Explanation:-**

According to the question,

In the figure-

The radius of circle A = 8 cm

The diameter of circle B = 8 cm.

Then, the radius of circle B = 8/2 = 4 cm.

The diameter of new circle (C) = 8 + 4 = 12 cm

Then ,the radius of new circle (C) = 12/2 = 6 cm.

**Formula –**

**The area of circle = pai R**

^{2}Therefore, the area of new circle (C) = (6)

^{2}pie = 36 pie cm square.

Hence, the answer is (1) 36 pie cm square.