4 years ago

Given the following figure. What is the value of x

Mathematics

2 answers:

Nookie1986 [14]4 years ago

3 0

Why?

Because if you draw a line from A to D to make a triangle AED, then triangle all angle add up equal 180.

kenny6666 [7]4 years ago

3 0

Answer: 11

Step-by-step explanation: We have an irregular pentagon

The sum of the interior angles = 540°

84 + 12x + 92 + (9x - 16) + (13x + 6) = 540 simplify

166 + 34x = 540 subtract 166 from both sides

34x = 374 divide both sides by 34

x = 11

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