Answer:
132
Explanation:
The interior angles of a heptagon (a seven sided figure) is
(n - 2)*180
(7 - 2)*180
5 * 180
900
So everything you've listed adds to 900.
x + x + x - 2+ x - 2+x + 2 +x+ 2 + x+4 = 900
The largest angle is x + 4
After collecting like terms we get
7x + 4 = 900 Subtract 4 from both sides.
7x + 4-4 = 900 - 4 Collect like terms.
7x = 896 Divide by 7
7x/7 = 896/7
x = 128
The largest angle = 128 + 4 = 132