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Mashutka [201]
3 years ago
13

What is the length of MN

Mathematics
2 answers:
dexar [7]3 years ago
8 0
15, because angle L and N are equal, 3x=x+10 so x=5, plugging it in, we get that MN is 15
Paraphin [41]3 years ago
4 0

Answer:

Option A. MN=15\ units

Step-by-step explanation:

we know that

An isosceles triangle has two equal sides and two interior equal angles

The triangle LMN is an isosceles triangle

therefore

ML=MN

substitute the values

3x=x+10

solve for x

3x-x=10

2x=10

x=10/2=5\ units

Find the length of MN

MN=x+10 -----> MN=5+10=15\ units

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