Question

The area of a trapezium is 68 cm2 and the length of one of the parallel sides is 10 cm and its height is 8 cm. Find the length of the other parallel side.

Answer 1

Answer:

•°• the length of the other parallel side is 10

Step-by-step explanation:

$area \: of \: trapezium = \frac{1}{2} \times sum \: of \: parallel \: sides \times height = \frac{1}{2} \times ( b+a) \: h$

$68 = \frac{1}{2} (10 + x)8 \\ \frac{68}{8} = 10 + x \\ 10+ x = 8.5 \\ x = 10 - 8.5 \\ x = 1.5$

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Answer 2

Answer:

answer will be 7 cm

Step-by-step explanation:

area of a trapezium- 1/2 × height ( sum of parallel sides

68 = 1/2 × 8 (x+10)

68 = 4 (x+10)

68/4 = x+10

17-10 = x

7 cm = x

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