Find the area of a triangle with base 10 cm and height 6 cm
- Write the formula: Area = 1/2 × base × height.
- Substitute values: Area = 1/2 × 10 × 6.
- 10 × 6 = 60, and half of 60 is 30.
Answer: 30 cm²
📐 Geometry & Measures
Area
Find area using the correct shape formula and squared units.
Global XP
Level 10 / 100 XP
1. Explanation
Key idea
- Area measures the space inside a 2D shape.
- Use the formula that matches the shape.
- Answers for area use squared units such as cm² or m².
Real-life examples
- Calculating material for a triangular sail.
- Finding painted areas on signs and walls.
2. Visual
Triangle area formula
Base = 8 cm, height = 5 cm. Area = 1/2 × 8 × 5 = 20 cm².
3. Help guide
How to tackle Area
- Learn the rule: Area measures the space inside a 2D shape.
- Worked model: Choose the correct formula. Substitute lengths. Use squared units.
- Try the interactive question without looking at the answer first.
- Use the flashcards to test the rule, the method and a common check.
4. Worked examples
Step-by-step working
5. Interactive questions
Try it yourself
A triangle has base 8 cm and height 5 cm. What is its area?
6. Flashcards
Master quick recall
Flip each card, then choose whether you know it or need more practice.
0 mastered
FrontWhat is the formula for area of a triangle?
BackArea = 1/2 × base × height.
FrontWhat units are used for area?
BackSquared units, such as cm² or m².
FrontRule for Area
BackArea measures the space inside a 2D shape.
7. Finish
Complete this topic
When you have read the examples, tried the question and reviewed flashcards, claim your topic completion XP.