Which lengths represent the side lengths of a right triangle? Use pencil and graph paper. Draw each triangle to verify your answer. Triangle 1: 12, 9, 21 Triangle 2: 9, 12, 15 Triangle 3: 15, 36 , 39.
Answer Choices:
A. Triangle 2 and Triangle 3 are right triangles.
B. Triangle 1 and Triangle 3 are right triangles.
C. All of the triangles are right triangles.
D. None of the triangles are right triangles.
2 answers
use a^2 + b^2 = c^2 to check
You can save yourself some calculation by learning a few of the basic Pythagorean triples, such as
3-4-5, 5-12-13, 8-15-17, 7-24-25
and their multiples.
3-4-5, 5-12-13, 8-15-17, 7-24-25
and their multiples.
1 answer