Question

Please help me with this

Answer 1

Just apply the Pythagoras Theorem, 

LN² = LM² + MN²

LN² = 7² + 8²

LN² = 49 + 64

LN = √113

In short, Your Answer would be: Option D

Hope this helps!

Answer 2

The answer would be (D.

~Hope This Helped~ :D