Rectilinear shapes
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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.
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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