The circumference of a circle is C = 2πr^2 (2nd power) Radius (r) is the distance from the center of the circle to the outside of it. To find radius divide the diameter (d) by 2. The diameter (d) of a circle is the radius (r) multiplied by 2. To find the diameter (d) you need to do C ÷ π.
For example):
Finding diameter - 76/3.14 = 24.19 (d)
Finding radius - 24.19/2 = 12.095 (r)
EDIT: (C) Means Circumference
89 plus 10 is 99 so that would be the answer
Answer:
h = 2![\sqrt{6}](https://tex.z-dn.net/?f=%5Csqrt%7B6%7D)
Step-by-step explanation:
Assuming that the line in the middle of the triangle is divided in half. You would need to use the Pythagorean theorem to get the height.
If the bottom is 5m and the hypotenuse is 7m, plug these numbers in to get this equation h^2 + 5^2 = 7^2. 5^2 is 25 and 7^2 is 49. Subtract 25 on both sides to get h^2 = 24. Radicals are there so you would need to think of 4 and 6 to get 2
since there are 2 of
to make 2 and that left us with root 6 which is your final answer for the height.
A because 12*4=48 and 32*4=128