Question

Find the value of X
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Answer 1

x = 118

Explanation:

1. All the angles in a pentagon add up to 540, so to find the value of x, we can use this equation x + 122 + 103 + 98 + 99 = 540.

2. (Solving)

Step One: Simplify both sides of the equation by adding like terms.

• (x) + (122 + 103 + 98 + 99) = 540
• x + 422 = 540

Step Two: Subtract 422 from both sides.

• x + 422 - 422 = 540 - 422
• x = 18