Question

In a ∆, <A:<B:<C=2:3:4 , then find <C.​

Answer 1

Step-by-step explanation:

in ∆ABC,

<A: < B: <C = 2:3:4

THEREFORE LET THE COMMON MULTIPLE BE 'x'

therefore, 2x + 3x + 4x = 180°...(sum of measures of angles of a triangle is 180)

therefore, 9x = 180°

therefore, x. = 180/9

therefore, x = 20

m<c = 4x

= 4×20

=80°