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What is a compound rectangular shape?
A shape made up of two or more rectangles.
If a rectangle has a base of 5cm and a height of 8cm, what is its area?
40cm2
24cm
What is the formula for finding a rectangle's area?
base x height
If a squared has a side measuring 9cm, what is its area?
81cm2
If a square has a side measuring 9cm, what is its perimeter?
36cm
An area's unit of measure always ends with what?
It is always squared. E.g. cm2
If a rectangle has an area of 42cm2 and a base measuring 7cm, what is its height?
6cm
If a rectangle has a base of 2cm and a height of 12cm and another rectangle has a base of 4cm and a height 6cm, which rectangle has the largest perimeter?
The first rectangle has a perimeter of 28cm. The second rectanlge has a smaller perimeter of 20cm.
What is the formula for finding the perimeter?
Add up all the shape's sides
A compound shape has an overall area of 53cm2. It can be split up into 2 rectangles. One rectangle has an area of 26cm2. What is the area of the other rectangle?
27cm2
If a rectangle has a base of 2cm and a height of 12cm and another rectangle has a base of 4m and a height 6m, which rectangle has the largest perimeter?
The second rectangle has a larger perimeter as it is measured using meters (m) not centimeters (cm).
What steps are used to find the area of a compound shape?
1.Split the shape into rectangles.
2.Calculate the area of each rectangle.
3.Add the areas together.
One rectangle has a base measuring 11cm and a height measuring 3cm. Another rectangle has a base of 8cm and a height of 9cm. Which rectangle has the greatest area?
The first rectangle has an area of 33cm2 and the second rectangle has a larger area of 72cm2.
If a rectangle has an area of 35cm2 and a base of 7cm. What is its perimeter?
24cm