CLASS 5 · LEARNING KNOWLEDGE
Areas and area units
How it works
The area measures how many unit squares fit into a figure. For area units, the conversion factor per level is 100. A square is a special rectangle.
Note
Rectangle: A = a·b; Square: A = a²; 1 m² = 10000 cm².
Rectangle: A = a·b; Square: A = a²; 1 m² = 10000 cm².
An example
A rectangle measures 10 cm by 9 cm. Calculate the area. Give the result in cm².
A=a·b=10·9. Result: 90 cm².
Try it yourself now
50 Exercises · three difficulty levels · selection and number input
To the learning unit →Own explanation and own practice exercises by AmyMath. Subject reference framework: KMK Educational Standards Mathematics ESA/MSA. The topic assignment may vary by federal state.