Find the values of the variables and the measures of the angles

x = 13

39° and 51°

Step-by-step explanation:

Angles in a triangle add up to 180 degrees.

This is a right angle triangle, so one side has a size of 90 degrees.

3x + 4x - 1 + 90 = 180

7x + 89 = 180

7x = 91

x = 91/7

x = 13

Put x as 13 to work out the size of the angles.

3(13) = 39

4(13) - 1

52 - 1 = 51

Measure of the angles

Step-by-step explanation:

sum of the interior angles in a triangle= 180°

x = 13,

now lets work out for the angles

0.02040816326