# Question #5202b

Jul 9, 2017

Assumption: the question reads as $22.5 \sqrt{3 \times 4}$

$\text{ "=" } 45 \sqrt{3}$ as an exact answer

$\text{ "~~" } 77.942$ as an approximate answer to 3 decimal places

#### Explanation:

Write as $\text{ } 22.5 \times \sqrt{3} \times \sqrt{{2}^{2}}$

$\text{ "=" } 22.5 \times 2 \times \sqrt{3}$

$\text{ "=" } 45 \sqrt{3}$ as an exact answer

$\text{ "~~" } 77.942$ as an approximate answer to 3 decimal places