Area of a circle is 80 cm². Work out the circumference of the circle. Can someone please help. And tell me how you did it please.

The circumference of circle is: 31.714 cm

Step-by-step explanation:

Let C be the circumference of the circle

And A be the area of circle

It is given that:

We have to find the radius first so that it can be used to find the circumference

The area of circle is given by the formula:

Putting the value of area

Taking square root on both sides

Now

Putting the value of radius

Hence,

The circumference of circle is: 31.714 cm

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc

exactly you go it

step-by-step explanation: