Right Triangles or Irregular?!

[P.Q.]

A triangle has sides with lengths of 6 feet, 8 feet, and 10 feet. Is it a right triangle?

A. Right.


A triangle has sides with lengths of 11 meters, 13 meters, and 16 meters. Is it a right triangle?

A. False

Here's a quick tip to figure this out 11 is not a even number but 6,8 and 10 are.


A triangle has sides with lengths of 8 meters, 15 meters, and 17 meters. Is it a right triangle?

A. Right

Another way to figure this out is through

Plug in 8, 15, and 17. Use the smaller numbers for a and b and the largest number for c.

a 2nd power + b 2nd power ? c 2nd power

8 2nd power + 15 2nd power ? 17 2nd power

64 + 225 ? 289

289 = 289

Again from the 2nd problem : 11 meters, 13 meters, and 16 meters. Is it a right triangle?

a 2nd power + b 2nd power ? c 2nd power

11 2nd power + 13 2nd power ? 16 2nd power

64 + 225 ? 289 ( I don't understand this part.)
What do I put to equal an answer like the other problem?

289 = 289

[P.Q.]

Plug in 3, 4, and 5. Use the smaller numbers for a and b and the largest number for c.

a2 + b2 c2

32 + 42 52

9 + 16 25

25 = 25


Plug in 6, 7, and 10. Use the smaller numbers for a and b and the largest number for c.

a2 + b2 c2

62 + 72 102

36 + 49 100

85 ≠ 100