Question

the area of trapezium is 480 cmsq .if the parallel sides are 48 cm and 72 cm long find the distance between them​

Answer 1

Answer:

Step-by-step explanation:

Answer:

Area of Trapezium = 1/2 (a+b)h

Where :

a,b are length of parallel sides

h = height (distance between a and b)

1/2×(48+72)×h = 480

1/2×(120)×h = 489

60 × h = 480

h = 8cm

Answer 2

Step-by-step explanation:

One of the parallel sides =24cm

Let the length of the other parallel sides be

′

x

′

cm

Also, area of the trapezium =480 cm

2

Distance between the parallel sides =8cm

∴ Area of a trapezium =

2

1

×(a+b)×h

∴480=

2

1

×(24+x)×8

⇒480=96+4x

⇒480−96=4x

⇒4x=384

⇒x=

4

384

=96cm

Thus the length of the other parallel side is 96cm