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What is the value of x? Triangle RST

What is the value of x? Triangle RST-example-1
User Natesan
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1 Answer

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since it is an equilateral triangle, all angles are equal to 60°

all angles are = to 60°

(7x + 4) = 60

subtract 4 from both sides:

7x = 56

divide 7 from both sides:

x = 8

User Platinummonkey
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