Question

In a triangle PQR , MN is parallel to QR .If PM=4.5 cm , MQ=7 cm , PR=10 cm then find NR.

Answer 1

Answer:

6.1 cm

Step-by-step explanation:

If NR = x cm , then PN = (10 - x) cm

If MN║QR , then $\frac{4.5}{7}$ = $\frac{10-x}{x}$

4.5x = 7(10 - x)

4.5x + 7x = 70

11.5x = 70

NR = x ≈ 6.1 cm