Area of Triangles

What is the area of the rectangle?

• 1 m²

• 7 m²

• 4 m²

• 12 m²

The formula for the area of a triangle must be.....

• more than the area of a rectangle

• half the area of a rectangle

• the same as the area of a rectangle

What are the new names for length and width of a triangle?

• acute and right

• base and height

• right and obtuse

• obtuse and acute

Was that cool or what?

 

yes is the only correct answer - just so you'll know!

• maybe so!

• no

• yes - pick this one!

What will the answer be to this area problem?

• 25 m²

• 20 m²

• 40 m²

What will the area of this triangle be?

• 22 in²

• 28 in²

• 14 in²

What is the formula for calculating the area of a square or rectangle?

• A = 1/2 (length x width)

• A = length  width

• A = length x width

What is the formula for finding the area of a triangle?

• A = base x height

• A = 1/2 (base x height)

• A = length x width

Think back —  

What is the formula for finding the area of a square or rectangle?

• Area = Length x Width

• Area = Length + Length + Width + Width

• Area = Length  Width