Question

Pls answer correctly
if not sure write "not sure"

Answer 1

Step-by-step explanation:

let the vertical and base angle be 4x and 3x

so, total angles = 4x +3x +3x = 10x = 180⁰

x = 18⁰

greatest angle = vertical angle = 4x = 4 x 18 = 72⁰