Quick quiz: Area of rectangles and squares with answers

📚 Quick Study Guide

• 📏 Rectangle: Area = length × width ( $A = l \times w$ )
• 🧮 Square: Area = side × side ( $A = s^2$ ) Since all sides are equal.
• ➕ Units: Always remember to include the correct unit of measurement (e.g., $cm^2$, $m^2$, $in^2$).
• 💡 Tip: Make sure all measurements are in the same units before calculating the area.
• 📐 Key Concept: Area is the amount of space inside a 2D shape.

Practice Quiz

1. What is the area of a rectangle with a length of 8 cm and a width of 5 cm?
   1. 35 $cm^2$
   2. 40 $cm^2$
   3. 13 $cm^2$
   4. 45 $cm^2$
2. What is the area of a square with a side length of 6 inches?
   1. 12 $in^2$
   2. 24 $in^2$
   3. 36 $in^2$
   4. 48 $in^2$
3. A rectangle has an area of 48 $m^2$ and a width of 4 m. What is its length?
   1. 8 m
   2. 12 m
   3. 16 m
   4. 20 m
4. What is the area of a square with a side length of 9 mm?
   1. 18 $mm^2$
   2. 36 $mm^2$
   3. 81 $mm^2$
   4. 90 $mm^2$
5. A rectangle has a length of 12 cm and a width of 7 cm. What is its area?
   1. 19 $cm^2$
   2. 72 $cm^2$
   3. 84 $cm^2$
   4. 96 $cm^2$
6. What is the area of a square with a side length of 11 cm?
   1. 22 $cm^2$
   2. 44 $cm^2$
   3. 121 $cm^2$
   4. 132 $cm^2$
7. A rectangle has an area of 60 $m^2$. If the length is 10 m, what is the width?
   1. 4 m
   2. 5 m
   3. 6 m
   4. 7 m