Question

The area of a trapezium is 360cm. If the distance between two parallel sides is 20cm and one parallel side is 25cm. Find the other parallel side

Answer 1

Answer:

11 cm .

Step-by-step explanation:

Given :

Area of a trapezium = 360 cm²

Height = 20 cm

One parallel side = 25 cm

We have to find another parallel side :

We know :

Area of a trapezium = 1 / 2 × Sum of parallel side × Height

Let another parallel side be a cm

Putting value here :

360 = 1 / 2 × ( x + 25 ) × 20

720 = 20 x + 500

20 x = 220

x = 11 cm.

Hence , the another parallel side is of 11 cm .

Answer 2

Answer:

11m

Step-by-step explanation:

Given that Area = 360 m

square Distance = 20 m

One parallel side = 25 m

Second parallel side = ?

Let the other parallel side be x.

We know that according to formula Area of trapezium

= 1/2 × sum of parallel sides × distance between them360 = 1/2 × 25+ x × 20360×2/20 = 25 + x36 = 25 + x36 - 25 = x11 = x

Hence, the other parallel side is= 11m