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kirill [66]
3 years ago
15

the parallel sides of a trapezium are such that the longer side is 4cm more than the shorter side of the distance between them i

s 20 cm and the area of trapezium 600 sq cm find the length of the parallel sides
Mathematics
1 answer:
saw5 [17]3 years ago
4 0

Answer:

32cm and 28cm

Step-by-step explanation:

Area of a trapezium=0.5 ( sum of parallel sides ) × height

600=0.5( 4+a+a)×20

where a is the length of the shorter side

600÷0.5=(4+2a)×20

1200=(4+2a)×20

1200÷20=4+2a

60=4+2a

60-4=2a

56=2a

56÷2=a

28=a.

since the longer side is 4 cm more than th shorter side , 28 +4=32

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This question is incomplete.

The complete question says;

The two-way table shows the number of hours students studied and whether they studied independently or with a study group.

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