Question

In a ∆ABC , if A=75° and B=45° then prove that b+2c=2a where a,b and c are three sides of the triangle.

Hey guys please answer this question and the best answer will be marked brainliest.​

Answer 1

Answer:

82.5

Step-by-step explanation:

b+2c =2a

45° +2×60°=2a

45°+120° =2a

165°=2a

a=165÷2

a=82.5