Question

Cristian put a large rock on the bottom of the terrarium he made for his pet turtle. The rock is a right rectangular prism 10cm wide by 12cm long. The rock displaces 1800cm cubed of water.
How high is the rock?

Answer 1

Answer:

10×12×x= 1800

120×x= 1800

x = 1800/120

x= 15

Answer 2

Given

• Length, l = 12 cm
• Breadth, b = 10 cm
• Volume,V = 1800 cm

To find out

How high(h) is the rock?

Formula used

Volume = length × breadth × height

Solution

We know that ,

Volume of cuboid = l × b × h

1800 = 12 × 10 × h

1800 =120h

h =1800/120

h= 15 cm

Knowledge Enhancer:

Prisms: A prism is a solid formed by joining two congruent plane shapes together with straight lines.

• Rectangular prism (cuboid)
• Square prism (Cube)
• Triangular prism
• Pentagonal prism
• Hexagonal prism