Geometric Mean

Find the geometric mean between 7 and 12.

• 5

• 9.5

• $\sqrt{19}$

• 2 $\sqrt{21}$

In △PQR, RS = 4 and QS = 6. Find PS.

• 2

• 5

• $\sqrt{10}$

• $2\sqrt{6}$

Find x.

•  $3\sqrt{2}$  

•  $\sqrt{14}$  

• 4.5

• 3

Find x and reduce to its simplest form.

(a)  

Find y and reduce to its simplest form.

(a)  

Find z and reduce to its simplest form.

(a)