What is the relationship between a radius and a diameter?
A radius is half the length of a diameter. OR A diameter is twice the length of a radius.
Calculate the area of this triangle.
Area = 1/2 b x h Area = 1/2 x 6m x 9m Area = 27 square metres
Calculate the area of this triangle?
A = 1/2 x b x h A = 1/2 x 4cm x 5cm A = 10 square centimetres
Name these shapes.
Triangles
Calculate the area of this square.
Area = L x W Area = 5cm x 5cm Area = 25 square cm
Calculate the area of this rectangle.
Area = L x W Area = 11m x 2m Area = 22 square metres
Calculate the area of this rectangle.
Area = L x W Area = 8cm x 3cm Area = 24 square cm
Calculate the area of this triangle.
A = 1/2 × b × h A = 1/2 x 2m x 6m Area = 6 square metres
Explain what a radius is.
A radius is a straight line that goes from the centre point of a circle to the circumference.
What is the value of pi?
3.14159265
Calculate the area of this triangle.
Area = 1/2 x b x h Area = 1/2 x 7m x 5m Area = 17.5 square metres
What is the relationship between the diameter and the circumference of a circle?
Circumference = 𝜋𝑑
The outside edge of a circle is called the ...
circumference
What is the formula for calculating the area of a rectangle?
Area = Length x Width
What is the formula for area of a triangle?
1/2 x b x h
These shapes all have four sides. They are called ...
quadrilaterals