Answer:
16.83
Step-by-step explanation:
7.36
+ 9.47
----------
16.83
To determine the hypotenuse, use the formula a^2 + b^2 = c^2.
Place 80 as "a" and 39 as "b". Your formula should look like 80^2 + 39^2 = c^2.
Next, plug this into your calculator to get 7921. Then square root 7921.
Answer: 89
Surface area of a cube is n^2, n being the measurment of any one side of the cube. In this case, 13x13=169, so the answer is 169 mL^2.
