Step-by-step explanation:
10 is the value of A ......
To solve for the longest side, the hypotenuse, you have to use the pythagorean theorem. It will be 10^2 + 9^2 = c^2. 100 + 81 =c^2.
c^2 = 181 so c = sqrt(181).
to find sin of A do opposite/hypotenuse which gives you 9/sqrt(181)
to find cos of A do adjacent/hypotenuse which gives you 10/sqrt(181)
9/16 + 1/4
9+4/16
13/16
Alternative form
0.8125
Answer:
π×10^2=314.15
Step-by-step explanation:
hope it helps