Let's solve the problem step by step.
Problem:
The volume of a box is
200 cubic cm, and two of its dimensions are
5 cm each. We are to find the length of the
remaining side.
---
Step 1: Recall the formula for the volume of a box (rectangular prism):
$$
\text{Volume} = \text{length} \times \text{width} \times \text{height}
$$
Let’s assume:
- Two sides are 5 cm each.
- Let the unknown side be $ x $ cm.
So:
$$
\text{Volume} = 5 \times 5 \times x = 25x
$$
We are told the volume is 200 cm³:
$$
25x = 200
$$
---
Step 2: Solve for $ x $
$$
x = \frac{200}{25} = 8
$$
---
Final Answer:
The remaining side is
8 cm.
✔ So, the correct answer is:
d) 8 cm
---
✔ Explanation:
We used the volume formula and substituted known values. Since two sides are 5 cm, their product is 25, and dividing the total volume (200) by 25 gives us the third dimension: 8 cm.
Parent Tip: Review the logic above to help your child master the concept of quiz questions year 5.
