Question

If two angle measurements are 53° and 70,° what must the third angle measurement equal to form a triangle?Please help please?

Answer 1

57 degrees

Explanation:

in a triangle the three interior angles always add to 180°

if you add 53 and 70 you get 123

to find the missing angle you would subtract 180 from the two numbers added

180 - 123

so 57 degrees