Question

Work out the value of x

Answer 1

110⁰

Explanation:

The sum of the interior angles of a polygon is given by:

(n-2)*(180⁰), where n is the number of sides.

For this diagram, n = 7

(7-2)*(180⁰) = 900⁰

Sum of the 6 marked angles = 790⁰

Angle x = 900⁰ - 790⁰ = 110⁰