Question

28. Two angle of triangle measure 30* and 25* than find the measure of third angle.
(use angle sum property for triangle)​

Answer 1

in ∆abc,

angleA=30°

angleB = 25°

angleC=?

angle A +angleB+ angle C=180

30+25+angle C=180

55+angle C=180

angle C=180-55

angle C =125

Answer 2

Answer:

by using angle sum property

angleA + angle B+ angle C =180

30+25+angleC=180

55+angleC=180

angleC = 180-55

so therefore measure of third angle that is angle C will be 125