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4.035 Estimating area

Worksheet
Estimating area
1

Estimate the total area of the artwork above the sofa, in square centimetres, if the sofa is 1.9 \text{ m} in length.

2

The following garden bed has three rows of four plants. Each plant is spaced about 24 \text{ cm} apart, and sit 12 \text{ cm} away from the edge of the garden bed:

Estimate the area of the garden bed in square centimetres.

3

Each square on the grid has an area of 9 \text{ mm}^{2} . Estimate for the area of the curved shape shown:

4

Each square on the grid has an area of 4 \text{ mm}^{2}. Estimate the area of the curved shape shown:

5

Estimate the area of the shape shown if each axis is measured in metres:

6

Estimate the area of the butterfly if each axis is measured in millimetres:

7

These road signs are pictured with relative sizings. If the GIVE WAY sign is an equilateral triangle with a side length of 75 \text{ cm}, estimate the area of the BICYCLES EXCEPTED sign.

8

Estimate the areas of the following shapes:

a
b
c
d
9

Name an object that has an area of approximately 1 \text{ m}^{2}.

10

Name an object that has an area of approximately 500\text{ cm}^{2}.

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Outcomes

ACMEM021

use metric units of area, their abbreviations, conversions between them, and appropriate choices of units

ACMEM022

estimate the areas of different shapes

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