Question

Two of the interior angles of a triangle are equal. The third interior angle is 99.4 degrees. What are the other two interior angles? theta=?degress

Answer 1

What is the sum of the 3 angles of a triangle?

Answer 2

Do you remember that the sum is 180 degrees?

Answer 3

Let x be the measure of the two equal angles, then

x+ x +99.4=180

Solve for x

Answer 4

\[

2 x =180-99.4\\
2 x= 80.6\\
x= 40.3
\]

Answer 5

thank you!