Question

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

Answer 1

The sum of the measures of the three angles of the triangle is 180*

35* + 45* + z = 180*

80* + z = 180*

z = 180* + z = 180* − 80* = 100*


= 100*

Answer 2

Explanation:

All triangles without exception, have 180 degrees.

x + 53 + 70 = 180 Add the left

x + 123 = 180 Subtract 123 from both sides.

x + 123 - 123 = 180 - `123 Combine.

x = 57