Question

Decide whether ABC is a right angle triangle

Answer 1

The triangle is not a right angle

AC = 22 - 8 - 5 = 9
AC² = AB² + BC²
81 = 64 + 25
81 isn't equal to 89, the triangle is not a right angle

Answer 2

Answer:

AC = 22 - 8 - 5 = 9

AC² = AB² + BC²

81 = 64 + 25

81 is not equal to 89

Step-by-step explanation: