Question

Find the area of the following circle.


15.7 in.2
78.5 in.2
19.63 in.2
31.4 in.2

Answer 1

would I do 5 times 3.14?

Answer 2

What is the formula for the area of a circle, when the radius is known?

What is the radius of the given circle?

Answer 3

is it 15.7?

Answer 4

Area of circle= pi*radius^2
since 5 is the diameter 2.5 is the radius

Answer 5

Please look up and type out the formula for the area of a circle. You'll need to know it. Also, please identify the diameter of the given circle.

Answer 6

the answer is the 3rd one

Answer 7

how

Answer 8

pi times radius squared

Answer 9

oh okay

Answer 10

@elementwielder: You must be new. Welcome to Open Study. But please be aware that just giving out answers (such as your "the answer is the 3rd one" is a very poor way of helping someone else to learn the material. You'll notice I've twice asked @girl8r7y to look up that info for herself, for the reason that she will understand and remember this material better if she does the research, not you. Please guide others towards finding their own answers; do not do their work for them or provide answers without effort. Thank you.

Answer 11

Sorry just trying to help

Answer 12

Yes, I'm sure. But please guide without providing answers.
@girl8r7y? Would you please show us (type out) your work towards finding the Area of this circle?