## voe Help! 3. A trapezoid has an area of 166.5 in.², a height of 9 in., and one base measuring 15 in. What is the length of the other base? (1 point) 3.5 in. 7 in. 18.5 in. 22 in. one year ago one year ago

1. deena123

$\frac{ 1 }{ 2 }* (a+b)$

2. deena123

it is 1/2*(a+b)*h

3. deena123

where a and b are length of bases and h is height

4. deena123

the other base length=22

5. voe

Thanks, thats what I ended up getting.