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3 years ago

In triangle LMN, the measure of m_L =75°and m_M is one-half m_N. what is m_M?

1 answer:

4 0

Let m(<N) be x;
We have m(<M) = 1.5x;
We solve the equation: 75 + x + 1.5x = 180;
75 + 2.5x = 180;
2.5x = 105;
x = 105 ÷ 2.5;
x = 42;
Finally, m(<M) = 63 degrees;

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