Question

Which expression represents the area of a circle with a radius of 7 units ?

A
7∙2∙π
B
7∙7∙π
C
7∙π∙π
D
3.5∙3.5∙π

Answer 1

Answer:

B)7∙7∙π

Step-by-step explanation:

the area of a circle A=πr^2

the r^2 turns into 7*7 and you keep the pi

so it would be 7*7*pi

Answer 2

The expression that represents the area of the given circle here is 7 × 7 × π (unit)².

What is a circle?

A circle is a two dimensional geometrical figure. It has a center from which the distance of of all the points on the the circumference are equal. Those distances are called radius of the circle.

If r is the radius of a circle, then it's area will be = π ×r² (unit)².

What is the area of the circle?

The area of a circle indicates the area encircled by it.

Given, the radius of the circle is = 7 units.

Therefore, the area of the circle is

= π ×r² (unit)² = π × 7² (unit)² = 7 × 7 × π (unit)²

Hence, option B is the right answer.

Learn more about the area of a circle here: https://brainly.com/question/22517603

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