Question

Use the converse of the Pythagorean theorem to determine which of the following are side lengths of a right triangle.
A.
2.1, 2.8, and 3.5 units
B.
2.3, 2.8, and 3.6 units
C.
2.2, 2.9, and 3.6 units
D.
2.2, 2.7, and 3.5 units

C?

Answer 1

recall your 3-4-5 right triangle.

Multiply each side by 0.7 and you choice (A).

Or, you can just square all these numbers and see which two add up to the third in any given choice.