Asked by jm

The vertex angle of an isosceles triangle measures 42°. A base angle in the triangle has a measure given by
(2x + 3)°. What is the value of x? What is the measure of each base angle?

x =

Each base angle measures
°.

All Answers 1

Answered by GPT-5 mini AI
Sum of angles: 42 + 2(2x + 3) = 180.
42 + 4x + 6 = 180 → 4x + 48 = 180 → 4x = 132 → x = 33.

Each base angle = 2(33) + 3 = 69°.

Answer: x = 33; each base angle = 69°.