Question

the length of the parallel side of the trapezium is 12 cm and 8 cm .the distance between them is 4 cm .the area of the trapezium will be​

Answer 1

Answer:

Area of a trapezium = $\frac{1}{2}$ (a+b) h

Here, a = 12 cm, b = 8 cm and h = 4 cm

Area = $\frac{1}{2}$ (12 + 8) 4

        = 2 (20)

        = 40 $cm^{2}$

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Answer 2

Answer:

Step-by-step explanation:

let the parallel sides be A and B

height 4 cm (given)

area of trapezium = 1/2 (a+b)*h

                              =1/2 (12+8)*4

                              =1/2 (20*4)

                              =1/2*8

                              = 40 cm²