1. Area of triangle

2. Area measures the surface of something

3. To find out how much shape is inside we can count the squares.
The area of a shape is the amount of space inside it.
The area of the shape is 18cm2.

4. Area of a Triangle 3 4 Finding the area of a triangle is different.

5. Area of a Triangle Sometimes it makes it easier to remember
if you can imagine it like this: 3 4
A triangle is half of a rectangle or square.
This is because the base (4) x the height (3) would be the
same as the length x the width of a rectangle.

6. 8 5 4 Example 1: Find the area of right triangle whose height is 8cm
and base is 5cm.
Solution: Given : Base = 5cm, Height = 8cm 8 5 4
= 5 x 4
= 20 cm

7. 8 5 4 Example 1: Find the area of right triangle whose height is 12cm
and base is 8cm.
Solution: Given : Base = 8cm, Height = 12cm 8 5 4
= 4 x 12
= 48 cm

8. Find the area of these right triangles.6 8 3 4