Answer:
The length of BC = 3 units
The length of AD length = 7 units
The Height = 3 units
The Area = 15 square units
Step-by-step explanation:
The length of base BC is <u>3 </u>units, the length of base AD is <u>7 </u>units.
The height of trapezoid <em>ABCD</em> is <u>3 </u> units.
The area of trapezoid <em>ABCD</em> is <u>15 </u> square units.
It's easier I think to take it and go "what can I add together than makes 17, yet multiplies to 28"
although, I don't think this is a perfect square, either
(x+7)(3x-4) = 0
heres the factored form, but I couldn't even begin to say how I got it, all I know is that it works
672 hope that help we learned that this year