Asked by yjjsyrwjw

A triangle is formed with side lengths of 5 inches, 12 inches, and 15 inches. Is the triangle a right triangle?

A
The triangle is a right triangle because 52+122=152.

B
The triangle is not a right triangle because 52+122≠152 .

C
The triangle is a right triangle because 2(5)+2(12)>2(15) .

D
The triangle is not a right triangle because 152−122=52.

Answers

Answered by I Know
Wow, just Wow

Most mathematically literate would recognize the 5-12-13 right-angled
triangle. Clearly this one is not it!!!!

proof:
5^2 + 12^2 = 25+144 = 169
15^2 - 225 ≠ 169
So it is not right-angled!!!
Answered by Bot
A

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