Question

A triangle has the following angle measures. 75o, 3xo, and 90o. What is the value of x?

o = degrees sign

Answer 1

x=5

Explanation:

A triangle has a total of 180° in angles.

Subtract values of the known angles:

180-75-90=15

15=3x°

Then cancel out the 3 by dividing 15 by 3.

15/3=5

so, x=5

I really hope this helps! :)

Answer 2

The Answer is 5
Knowing that there are 180* in a triangle we would add up 75 + 90 and get 165. Which leaves 15* left over. Which would mean 3(5)* = 15*.
75 + 90 + 15 = 180