Asked by df

A triangle has sides of lengths 9 cm, 40 cm, and 41 cm. Which statement is true about this triangle?

Not a right triangle?
Answered by Ms. Sue
Right.

Answered by Henry
a^2 + b^2 = c^2,
(9)^2 + (40)^2 = (41)^2,
81 + 1600 = 1681,
1681 = 1681.

Therefore, this is a rt. triangle.