Question

The measures of two angles in ABC are 56 and 72.

What is the measure of A?

Answer 1

Answer:

52

Step-by-step explanation:

The triangle is 180o

if B and C are 56 and 72

that means 56 + 72 = 128

so B + C = 128

and finally

180 - 128 = 52

A = 52