Question

What is the exact area of a circle whose diameter is 24 cm?

A.
576 straight pi cm2

B.
144 straight pi cm2

C.
48 straight pi cm2

D.
24 straight pi cm2

Answer 1

@MrNood

Answer 2

@sammixboo

Answer 3

i think its

Answer 4

B

Answer 5

now - you need more confidence!

I am sure you know the formula for the area of a circle

If the diameter is 24 - what is the radius?

what is the radius squared?

Answer 6

The area of a circle is A = pi times r squared, where r is the radius and A is the area, and the diameter is given as 24. The radius is equal to one half of the diameter, therefore the radius is 12. Now substitute the equation for area of a circle with these values:
A = pi times 12 squared
A = pi times 144

Answer 7

So, the area of the circle is 144pi

Answer 8

The correct answer is B.

Answer 9

Happy studying! :)

Answer 10

@openstudier101x it is against the code of conduct to give complete answers

Answer 11

is that correct?

Answer 12

nvm thanks i see you showed me

Answer 13

I understand. Just trying to help because I know it may sometimes be vague when you don’t say the exact answer, and also, @MrNood , you have posted the question and the answer options, making the criteria for the overall expected response not very intricate... It is also against the code of conduct for you to ask a question without your own personal answer, so please do your own work and only use the “community” of studying for help, and to verify your answers.