Calculate the area of rectilinear shapes

Calculate the area of rectilinear shapes

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Lesson details

Key learning points

  1. In this lesson, we will learn to calculate the area of rectilinear shapes by splitting them into two or more rectangles.

Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

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4 Questions

Q1.
What is area?
A shape with parallel sides
The measurement around the boundary of a shape
Correct answer: The size of the surface of a 2-D shape
Q2.
What is the area of the shape below?
An image in a quiz
Correct answer: 10 units squared
14 units squared
5 units squared
Q3.
What is the formula for calculating area?
length + width
length + width
length ÷ width
Correct answer: length x width
Q4.
What is the area of the shape below?
An image in a quiz
10 cm
20 cm
24 cm
Correct answer: 24 cm²

4 Questions

Q1.
What does area measure?
length
the space around the outside of a shape
Correct answer: the space inside a shape
Q2.
What is the area of a rectangle that measures 5cm by 4cm?
18cm
20cm
Correct answer: 20cm²
9cm
Q3.
How could you find the area of this shape? (tick 4)
An image in a quiz
Correct answer: count the squares inside
Correct answer: find a 6x4 rectangle then subtract a 2x4 rectangle
guess
Correct answer: split into a 2x6 rectangle and a 2x2 square
Correct answer: split into two rectangles: 2x4 and 2x4
split into two rectangles: 2x4 and 2x6
Q4.
What is the area of this shape?
An image in a quiz
180cm²
Correct answer: 180mm²
200cm²
200mm²
20cm²
20mm²

Lesson appears in

UnitMaths / 2-D shape, perimeter and area