If by area you mean surface area then the answer is 248 square inches but if you mean volume the answer is 240 cubed inches.
The average can be calclculated as follows:
average = sum of number/number of numbers
average = (19+45) / 2 = 64/2 = 32
13°, 66°, and 101° ......
I didn't mean to post the answer and can't figure out how to take it down. Somebody report it so it does go down and the question can be later answered. Thank you
Your answer is at the top good luck!