PLEASE HELP ANSWER AS SOON AS POSSIBLE calculate the circumfrence of the circle

C; 40.82

Step-by-step explanation:

First we know that the formula to find the circumference of a circle is 2πr, with r being the radius and assuming that π is equal to 3.14. And, we understand that the radius is half the diameter, which would 6.5. Therefore, we can set up the following equation: (2)(3.14)(6.5) = 40.82. So, the only logical answer would be 40.82 centimetres.

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation:

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2