Question

The area of trapezium is 240cm².if the lengths of its parallel sides are 20cm and 22cm.Find its altitude ​

Answer 1

Answer:

80/7 cm or 11.42cm

Step-by-step explanation:

area of trapezium

A=(a+b/2)×h

where a nd b are parallel sides and h is altitude

240 = 42/2×h

240/21 = h

h = 80/7cm or 11.42 cm

i hope it will help you

Answer 2

Step-by-step explanation:

area of trapezium =

1/2 × (sum of parallel sides)× (distance between them)

1/2 × (20 + 22) × altitude = 240

1/2 × 42 × altitude = 240

21 × altitude =240

altitude = 240/21 = 11.42

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