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lisabon 2012 [21]
4 years ago
13

I posted this 575322 times pls help

Mathematics
1 answer:
hodyreva [135]4 years ago
5 0

Answer:

Step-by-step explanation:

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Twenty toothpicks, each 6 cm long, form a figure consisting of six equilateral triangles and a rectangle as shown. What is the t
Roman55 [17]

The total area of the figure is 139.20 square centimeters

Areas

The area of a shape is the amount of space it occupies

<h3>Composite figure</h3>

The figure (see attachment) is a composite figure, and the total area is the sum of the areas of each shape that makes up the complete figure

The shape has 6 equilateral triangles, each of which has an area of:

A_1 = \sqrt{\frac{3s^2}{4}}

Where:

s = 6 --- the length of each toothpick

The area of the rectangle is then represented as:

A_2 =3s \times s

A_2 =3s^2

So, the total area of the figure is:

Total = 6A_1 + A_2

This gives

Total =6 \times \sqrt{\frac{3s^2}{4}} + 3s^2

Substitute 6 for s

Total =6 \times \sqrt{\frac{3(6)^2}{4}} + 3(6)^2

Total =6 \times \sqrt{27} + 108

Total =6 \times 5.20+ 108

Total =139.20

Hence, the total area of the figure is 139.20 square centimeters

Read more about areas at:

brainly.com/question/21135654

7 0
2 years ago
Which expression shows this number in expanded form 0.624
Lelechka [254]
(6 x 1/10) + (2 x 1/100) + (4 x 1/1000)
8 0
4 years ago
Can someone tell me what 8 x 1 1/2 equals
Lady_Fox [76]
8 x 1 = 8
8 x 1/2 = 4
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therefore, 8 x 1 1/2 = 12
7 0
4 years ago
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Help me plz this is hard will give points
baherus [9]

Answer:

C = 14pi

Step-by-step explanation:

C = pi d

The radius is 7 so the diameter is

d = 2r

d = 2*7

=14

C = pi *14

C = 14pi

5 0
3 years ago
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What is the sum of 1/7 and 2/7
Brut [27]
The answer to the question is 3/7. add 1 and 2=3, it is 3/7
3 0
4 years ago
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