Question

3. Points Q, R, and S are the midpoints of the sides of triangle LMN. LM = 16, QR = 6, and QS = 10. Find the length of LN. The diagram is not to scale.
32
12
20
22

Answer 1

Qr=1/2 mn = ms
mn=2 ms=12
ln^2=lm^2+mn^2 using phythagoras rule
ln^2=400
ln=20