Question

The two triangles in the figure below are similar triangles. Solve for x.128846O 810O not enough information

Answer 1

Solution

step 1

Explain similarity

Both triangles are similar therefore the ratio of their corresponding sides must be equal.

Step2

State the corresponding sides

$\frac{12}{x}=\frac{8}{4}$

Step 3

Find x

$\begin{gathered} 8x\text{ = 12}\times4 \\ x\text{ =}\frac{48}{8} \\ x=6 \end{gathered}$

Hence option A