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31 votes
31 votes
Solve for x if the three angles of a triangle are: x, 45 degrees, and 5x degrees

User Vivek Dhiman
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1 Answer

9 votes
9 votes

Answer: 22.5 degrees

Explanation:

The sum of the angles of a triangle is 180 degrees.

So we can set up an equation to solve for x.

x + 45 + 5x = 180.

Combine like terms of x:

6x + 45 = 180

Subtract 45 from both sides:

6x = 135

Divide both sides by 6:

x = 22.5 degrees

User Vikramjit
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2.9k points