Math, asked by Anonymous, 1 year ago

Answer the question 3 with full steps

Attachments:

Answers

Answered by abhi027
2

area of trapezium = 1/2 × (sum of parallel sides) × height

area given = 640 cm^2

height = 13cm

ratio of parallel sides = 7:9

let the common factor be x

so the parallel sides = 7x cm, 9x cm

total of parallel sides =16x cm

so,

=> 640 = (1/2) × 16x × 13

=> 640 = 8x × 13

=> x = 640 × 13/8

=> x = 80 × 13

=> x = 1040 cm

so, the parallel sides are (7 × 1040) = 7280cm

(9 × 1040) = 9360cm

Similar questions