Question

In triangle LMN, points A and B are on sides MN and LN respectively, such that AB is parallel to LM. If MA/AN =4/5 and BN=3.5cm. Then LN =

Answer 1

4/5=3.5/LN

4LN=5×3.5

4LN=17.5

LN=17.5÷4

LN=4.3cm

otherwise

4/5=3.5/LN

0.8=3.5/LN

LN=3.5/0.8

LN=4.3cm