Question

three angles of a quadrilateral are in ratio of 1:2:4 and fourth angle is 80 degrees find the difference of angle greatest and smallest​

Answer 1

Answer:

$1x + 2x + 4x + 80 = 360 \\ 7x = 360 - 80 \\ 7x = 280 \\ x = 280 \div 7 \\ x = 40$

Answer 2

your answer to the problem is in the pic