Question

what is the area of a circle of a radius 7cm
a) 22cm
b)308 cm
c)77cm
d)154cm​

Answer 1

Answer:

154 is answer

I hope it is correct answer

Step-by-step explanation:

154 is answer

Answer 2

• As per the data given in the question, we have to find the value of the expression.

          Given data:- Radius is $7\ cm.$

          To find:- Area of the circle.

          Solution:-

• The circles are said to be congruent if they have an equal radius.
• The diameter of a circle is the longest chord of a circle.
• Equal chords of a circle subtend equal angles at the center.

• Formula for the Area of a circle is

              $A=\pi r^{2} .$

        Therefore,

             $A=\pi R^{2}\\ =\frac{22}{7}\times 7^{2} \\=154cm.$

Hence we will get the value $154cm.$