A section in a stained glass window is shaped like a trapezoid.the top base is 4 centimeters and the bottom base is 2.5 centimeters long.if the area of the section of glass is 3.9 square centimeters,how tall is the section?
The formula for a trapezoid is
a= (l+w)/2 * h (substitute knowns)
3.9= (2.5+4)/2 *h. (solve for h)
3.9= 3.25* h
3.9/3.25= h
h= 1.2
The height is 1.2cm in length
