Question

non parellel sides of trap is equal to 25 and parellel sides are 40 and 70 . find the area

Answer 1

Answer:

1100

Step-by-step explanation:

AB=40

CD=70

AE AND BF ARE PERPENDICULAR TO CD

THEN ED=CF=(70-40)/2=15

HERE AD=25

SINCE ADE IS A RIGHT ANGLE TRIANGLE SO

AE=(25²-15²)^½=20

HENCE AREA OF ABCD=½(40+70)20=1100