math

1. Volume
Of Cuboid

2. Remember
Perimeter rectangle = ( Length + width ) x 2
width
length
length
width

3. Remember
Area rectangle = Length x Width
width
length

4. The Volume of Cuboid
length
height

5. Volume Cuboid = Length x width x height
Volume
( V )
Length
( L )
Width
( W )
Height
( H )

6. Ex(1) Find the volume of the cuboid
its dimensions are 3 cm , 5 cm and 10 cm .
Volume = L x W x H
= 3 x 5 x 10
= 150 cm3
Given v=900cm , l= 10cm w= 5cm find the
hight?

7. Ex(2) If the volume of a cubiod is 168000
its length is 175 cm and its width 12 cm .
Find its height.
Height cuboid =
= 80 cm
Volume
L x W
168 000
175 x 12
=

8. Depth ( H ) =
= 1.5 m.
Volume
L x W
3 600
60 X 40
=

9. Base Area [ rectangle ] = Length x Width
Volume = B.A x H
Volume
( V )
Height
( H )
Base Area
( B.A )

10. Ex(4) If the volume of a cubiod is 720 cm3
and its height is 8 cm. Find its base area.
Base area =
= 90 cm²
Volume
H
720
8
=

11. Ex(5) Which is greater in volume ?
A cubiod of dimensions 4 cm , 9 cm and 12cm
A cubiod of height 6cm and base area 75 cm2
1st. Volume = L x w x h
= 4 x 9 x 12 = 432 cm3
2nd. Volume = B.A x h
= 75 x 6 = 450 cm3
2nd.Cuboid is greater than in Volume 1st.Cuboid

12. Ex(6) A box is in the shape of cubiod its dimensions
30cm , 25cm , 15cm . If its filled with cuboid shaped
pieces of sweets of dimensions 6cm , 5cm and 3cm
Find the number of pieces of sweets in the box .
1st. Volume = L x w x h
= 30 x 25 x 15 = 11 250 cm3
2nd. Volume = L x w x h
= 6 x 5 x 3 = 90 cm3
No. of sweets =
11 250
90
= 125 Pieces

13. Height cuboid =
= 6 cm
Volume
S x S
384
8 x 8
=