Question

Determine the measure of Angle B in the triangle below. thank you

Answer 1

55°

Explanation:

2x + 5 + 2x + 3x = 180 Combine like terms The sum of the interior angles of a triangle is 180

7x + 5 = 180 Subtract 5 from both sides

7x + 5 - 5 = 180 - 5

7x = 175 Divide both sides by 7

`(7x)/(7)` =
`(175)/(7)`

x = 25

Substitute 25 for x

2x + 5

2(25) + 5

50 + 5

55 is the measurement of angle B