Are you cheating on this test?
We know that
<span>In a right triangle
if A and B are complementary angles
cos A=sin B
therefore
if cos A=5/13
then sin B=5/13
the answer is
sin B=5/13</span>
Answer: C 100π sq. miles
Step-by-step explanation:
Area of a circle = π x r^2
Area = π x 10^2
Area = 100π
Firstly, subtract a^2 on both sides:
Next, we are going to be using the difference of squares, which is . Use this on the right side of the equation:
Lastly, square root both sides of the equation, and <u>your answer will be </u>