What is the area of the rectangle below?
1.-1 -3,1 3, 4 7,2
2√5
3√5
10√5
30
To find the area of a rectangle, you multiply the length by the width.
The length of the rectangle is the difference between the x-coordinates of two opposite corners:
Length = 7 - (-1) = 8
The width of the rectangle is the difference between the y-coordinates of two opposite corners:
Width = 3 - (-3) = 6
Now, multiply the length by the width to find the area:
Area = 8 * 6 = 48
Since 48 = 4 * 12 = 2 * 2 * 2 * 2 * 3 = 4√3 * 2 * 2 = 4√3 * 4 = 16√3, the area of the rectangle is 16√3.