Question

The area of a trapezium with parallel sides 18cm 12cm and height is 8cm

Answer 1

Trapezium

parallel sides = 18 cm, 12cm

Height = 8cm

____

Area of trapezium =

`(1)/(2) * (a + b) * h`

____

`(1)/(2) * (a + b) * h`

`(1)/(2) * (18 + 12) * 8`

`(1)/(2) * (30) * 8`

`(1)/(1) * (15) *8`

`120 \: cm ^(2)`

____

Therefore, Area of trapezium is
`120 \: cm {}^(2)`

Answer 2

Area of Trapezium = 120 cm³

Explanation:

Trapezium = 1/2 * (a+b) * h [Formulae]

A & b = Sum of parallel sides

Given that,

• Height H = 8
• Sum of parallel sides = 18 and 12, 18+12

Solved:

• 1/2(18+12)8 cm²
• 1/2 * 30 * 8 cm²
• 15 * 8 cm²
• 120 cm²

Therefore,the area of trapezium is 120 sq. cm or 120 cm².