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CAN ANYONE HELP ME WITH QUESTION 7

CAN ANYONE HELP ME WITH QUESTION 7-example-1
User Trollkotze
by
8.4k points

2 Answers

2 votes

Answer:

X = 4

Explanation:

The angles of a triangle add up to 180 degrees and this is an equilateral triangle which means that all the angles are the same. which means you set up the equation:

10x + 20 + 10x + 20 + 10x + 20 = 180

Simplify: 30x + 60 = 180

- 60 - 60

You have : 30x = 120

(Divide by 30)

You end up with: X = 4

User Kushal Sharma
by
7.5k points
2 votes

Answer:

x = 4.

Explanation:

Each angle in an equilateral triangle is 60 degrees, so we have:

10x + 20 = 60

10x = 40

x = 4.

User Rtist
by
9.5k points

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