Kevin is making a set of candles to give as a gift. The first candle is a triangular prism with a height of 17 centimeters.

The base has legs measuring 11 centimeters and 12 centimeters. The hypotenuse length is about 16.3 centimeters.

Kevin makes a second candle shaped like a triangular prism, with the same height as the first candle. The base is a triangle similar to the base of the first candle, except with the shorter leg 2 centimeters longer than the shorter leg of the first candle. What are the side lengths of the base of the second candle in centimeters?

Type each measurement with a comma in between without the unit and with no period. For example: 1, 2, 3

(My previous but INCORRECT answers were 13, 12, 17.7. I know that 13 is the only correct value)

Kevin then makes several cone-shaped candles. He uses a cone mold that has a height of 15 centimeters and a diameter of 10 centimeters. How many cubic centimeters of wax is needed to make 3 cone-shaped candles?

Only type the number.

(My previous but INCORRECT answer was 392.5)

If somebody could send me a correct answer, work, and explanations of what I got wrong, that would be great! Thanks for taking the time to consider my questions.