A triangle has an angle of 90 degrees and the other 2 angles are equal. What is the measurement of the other angles?

45 deg

Step-by-step explanation:

let each of the other angles be x deg

it is given that the other 2 angles are equal, hence the 3 angles are 90 deg, x deg and x deg.

recall that the interior angles of a triangle always add up to 180 deg

hence,

90 + x  + x = 180 deg

90 + 2x = 180

2x = 90

x = 45 deg

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.