Question

PLEASE HELP

Alex wants to paint one side of his skateboard ramp with glow-in-the-dark paint, but he needs to know how much area he is painting. Calculate the area of the isosceles trapezoid.

140 ft2
160 ft2
180 ft2
200 ft2

Answer 1

D.) 200ft²

Explanation:

The formula for the area of a trapezoid:

`A=(1)/(2) (b_(1)+b_(2))h`

where:

• 
  `b_(1)` and
  `b_(2)` are the bases
• h is the height

Insert the given values:

`A=(1)/(2)(16+24)*10`

Simplify the equation using PEMDAS. Simplify parentheses:

`A=(1)/(2)*40*10`

Simplify multiplication:

`A=(1)/(2)* 400`

Simplify multiplication. Use the rule
`(a)/(b)*c=(ac)/(b)` :

`A=(1*400)/(2)\\\\A=(400)/(2)`

Simplify division:

`A=200`

The area is 200ft²

:Done