Question

Please I need help with this question.
No 22. Is very important.
Thank you.​

Answer 1

C.
`132m^3`

Explanation:

Height = 4

Length = 6

Breadth = 7

Note : We were asked to find volume of the cuboid

Since, it has a base in the shape of a right angle triangle , we need to find the Area of the trapezium before calculating the total volume.

Step 1

Find the area of the trapezium

Area of a trapezium =
`(1)/(2) (a+b)h`

`(1)/(2) (4+7)*4`

`(1)/(2) (11)4\\`

`(1)/(2) *44\\= 22`

Step 2

Calculate the volume of the cuboid

Volume of a cuboid =length× breadth × height

In this case , the volume will be our length × Area of a trapezium

V= 6 × 22

V =
`132m^3`