Answer:
13 units
Step-by-step explanation:
Hello!
The area of a trapezoid is [tex]\frac{b_1 + b_2}{2} * h[/tex].
So, given the area is 100 units², and the height is 10 and one base is 7, solve for the other base:
- [tex]\frac{b_1 + 7}{2} * 10 = 100[/tex]
- [tex]\frac{b_1 + 7}{2} = 10[/tex]
- [tex]b_1 + 7 = 20[/tex]
- [tex]b_1 = 13[/tex]
The missing base is 13 units.
