Question

Can anyone help me with this with easy tricks

We also have to find volume
I have exams tommorow ​

Answer 1

1,120 cm³

Explanation:

Hello!

Think about it this way: There is a rectangular prism, with lengths of 20cm, 12cm, and 10cm, and another rectangular prism cut out of it with lengths, of 8cm, 8cm, and 20cm.

Larger rectangular prism

Volume = L * W * H

• V = 20cm * 12cm * 10cm
• V = 2,400cm³

Cut-Out Rectangular Prism

V = L * W * H

• V = 8cm * 8cm * 20cm

• V = 1,280cm³

Subtract:

• 2,400cm³ - 1,280cm³

• 1,120cm³

The total volume is 1,120cm³