The area of a trapezium is 480cm2. If the distance between the two parallel sides is 20cm and one of the parallel sides is 25cm long, find the other parallel side
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Area of trapezium = 1/2 × sum of parallel sides × height
Let the other parallel side be y
480= 1/2 × ( 25 + y ) × 20
480 ×2 = ( 25 + y ) ×20
480 × 2 / 20 = ( 25 + y )
48 = 25 + y
48-25 = y
23 = y
Therefore; other parallel side is 23 cm
Hope it's clear. Pls mark it as the brainliest.
Let the other parallel side be y
480= 1/2 × ( 25 + y ) × 20
480 ×2 = ( 25 + y ) ×20
480 × 2 / 20 = ( 25 + y )
48 = 25 + y
48-25 = y
23 = y
Therefore; other parallel side is 23 cm
Hope it's clear. Pls mark it as the brainliest.
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1
Answer:
23 cm
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