Question

In a ∆ABC, if angle a= 72° and angle b= 63°, then find angle c.

Answer 1

Answer:

180°-(72°+63°)

180- 135

45°

Step-by-step explanation:

thanks for the question.

Answer 2

Answer:

A=72 degree

B=63 degree

let c = x

Step-by-step explanation:

72+63+x=180 degree

135+x=180 degree

x=180-135

x=45

check,

72+63+45=180

correct