p 4. for a trapezoid, the following formula relates the area a, the two bases a and b, and the height h. a=(a+b)2h solve for a. a. a = 2a − b
h b. a= 2a/h + b c. a= 2a/h − b d. a= ah/2 − b 5. the formula for the perimeter of a rectangle is p=2(l+w). solve for l. l= p/2 − w l= p/2 + w l= p − w