Question

What is the area of a trapezoid that has bases of 1feet and 14 inches and a height of 3 inches? A 43.5 in.^2 B 87 in.^2 C 22.9 in.^2 D 3.6 in.^2

Answer 1

43.5 in^2

Explanation:

Answer 2

Option A.
`43.5\ in^(2)`

Explanation:

we know that

The area of a trapezoid is equal to

`A=(1/2)(b1+b2)h`

we have

`b1=1(1)/(4)\ ft`

`b2=14\ in`

`h=3\ in`

Convert feet to inches first

Remember that

`1\ ft=12\ in`

so

`1(1)/(4)\ ft=(5)/(4)\ ft=12*(5)/(4)=15\ in`

substitute in the formula

`A=(1/2)(15+14)3=43.5\ in^(2)`