Question

The parallel sides of a trapezium is are in the ratio 3:4 and the perpendicular distance between them is 12 cm. If the area of the trapezium is630 sq.cm, then its shorter of the parallel sides is

a) 45 cm
b) 42 cm
c) 6o cm
d) 36 cm

Please give me the answer fast.

Answer 1

Check answer is a)45cm

Answer 2

Answer:

45cm

Step-by-step explanation:

parallel side of a trapezium =3:4

height =12cm

Area=630cm^2

let parallel side of trapezium=1/2(sum of parallel sides)height

x=630cm^2=1/2x7×x12

=x=630/42=15

parallel side are 4×15=60cm

3×5=45cm