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Lesson details

Key learning points

  1. In this lesson, we will learn to calculate the area (and perimeter) of rectilinear shapes by 'combining' 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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5 Questions

Q1.
Fill in the gap: To work out the area of a __________ we need to know how many square units lie within its boundary.
area
cube
length
Correct answer: rectangle
Q2.
Fill in the gap: Instead of counting square units within the rectangle, we can multiply the ________ and width to work out the rectangle’s area.
area
cube
Correct answer: length
rectangle
Q3.
What number is represented by letter A?
An image in a quiz
10
24
4
Correct answer: 6
Q4.
What number is represented by letter B?
An image in a quiz
10
24
Correct answer: 4
6
Q5.
What number is represented by letter C?
An image in a quiz
10
Correct answer: 24
4
6

5 Questions

Q1.
Fill in the gap: Rectilinear shapes are polygons where all sides meet at a __________________.
obtuse angle
rectangles
Correct answer: right-angle
vertex
Q2.
Fill in the gap: We can find the area of rectilinear shapes by splitting the shape into two or more _________________.
obtuse angles
Correct answer: rectangles
right-angles
vertices
Q3.
Fill in the gap: One way in which the shape could be split is shown. The area of this shape can be calculated by the following calculation: 12 × ___ + 6 × 7
An image in a quiz
12
Correct answer: 5
6
7
Q4.
What is the area of this rectilinear shape?
An image in a quiz
Correct answer: 102 cm²
132 cm²
42 cm²
60 cm²
Q5.
Find the area (A) and perimeter (P) of this rectilinear shape.
An image in a quiz
A = 143 cm², P = 48 cm
A = 48 cm², P = 80 cm
Correct answer: A = 80 cm², P = 48 cm
A = 80 cm², P = 80 cm

Lesson appears in

UnitMaths / Area of 2-D shapes