Question

The measures of the angles of a hexagon are
a", (a - 5)". (a - 5), (2a - 5), (2a - 5) and
(2a + 20)". Find the value of a.​

Answer 1

Answer:

80°

Step-by-step explanation:

Sum of measures of all angles of a hexagon = 720°

: . a + (a-5) + (a-5) + (2a-5) + (2a - 5) + (2a+20) = 720°

: . 9a = 720°

: . a = 80°