Question

in the figure below, triangle abc is similar to triangle jkl. what is the length of kl?

a. 13.3
b. 2.2
c. 7.2
d. 9.7

Explanation:

Step1: Set up proportion

$\frac{AB}{JK}=\frac{BC}{KL}$, so $\frac{3}{5.4}=\frac{4}{KL}$

Step2: Cross - multiply

$3\times KL = 4\times5.4$

Step3: Solve for KL

$KL=\frac{4\times5.4}{3}=7.2$

Answer:

C. 7.2