Question

The area of a trapezium is 780 cm2 and perpendicular distance between parallel sides is 13 cm find the length of other parallel sides if one of them is 54 cm long​

Answer 1

Answer:

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Answer 2

Area of trapezium=138m^2

height=12

difference between sides =7

now,

area of trapezium. = 1/2×(a+b)×h

1/2×(a+b)×12 = 138

(a+b)=138/6

(a+b)=23

difference=7, =a-b =7

now adding the sum and difference

(a+b)+(a-b)=23+7

2a=30

a=15

so, b=8

:(a-b)=15-8=7.