Year 7
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Lesson details
Key learning points
- 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
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
rectangle
Q3.
What number is represented by letter A?
10
24
4
Q4.
What number is represented by letter B?
10
24
6
Q5.
What number is represented by letter C?
10
4
6
5 Questions
Q1.
Fill in the gap: Rectilinear shapes are polygons where all sides meet at a __________________.
obtuse angle
rectangles
vertex
Q2.
Fill in the gap: We can find the area of rectilinear shapes by splitting the shape into two or more _________________.
obtuse angles
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
12
6
7
Q4.
What is the area of this rectilinear shape?
132 cm²
42 cm²
60 cm²
Q5.
Find the area (A) and perimeter (P) of this rectilinear shape.
A = 143 cm², P = 48 cm
A = 48 cm², P = 80 cm
A = 80 cm², P = 80 cm