Question

The parallel sides of a trapezium are 40 cm and 20 CM if its non parallel sides are equal each being 26 cm find area of trapezium​

Answer 1

Answer:

780

Step-by-step explanation:

1/2×h(l+b)

= 1/2×26(40+20)

= 13×60

= 780

Answer 2

Answer : 480cm

Step-by-step explanation:

We know that area of parellelogram is

1/2×height×(l+b)

Here the base is given that is 40 cm

We have to find the height

With the height a right angle triangle is formed

The hypoteneuse is 26cm

The base of thisis 10cm

To find the height we should use the pythagoreous theorem

26^2-10^2

676-100

576

24^2 = 576

So the height is 24cm

The area is 1/2×24×(40+20)

The area is 12×60= 720cm^2