Question

A rectangle is 2 √7 feet wide and 3 √7 feet long. What is the area, in square feet, of

Answer 1

Answer:

$42ft^{2}$

Step-by-step explanation:

$2\sqrt{7}$ × $3\sqrt{7}$

Multiply the numbers outside the root and inside the root.

$2x3=6$      $7x7=49$

$6\sqrt{49}$

Simplify whats under the root

$\sqrt{49} = 7$

$6$×$7=42$