Question

A. Solve for the value of x in the given triangle.

b. use your answer to the previous question to find the measures of the three angles, then classify RKO by its angle measures.

A. Acute
B. Equiangular
C. Right
D. Obtuse

Answer 1

Explanation:

`5x + 5 + 11x - 1 + 3x + 5 = 180 \\\ 19x + 9 = 180 \\\ 19x = 180 - 9 \\\ 19x = 171 \\\ x = (171)/(19) \\\\\ x = 9`

11 × 9 - 1 = 98°

The obtuse angle is the one have an angle measuring between 90° and 180°.

I hope I've helped you.

I think I'm getting better my English ^^