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pogonyaev
1 year ago
15

Salvador draws a figure on grid paper. He says it is a net for a three dimensional figure. Explain if Salvador is correct. If he

is, identify the figure in your explanation.
Mathematics
1 answer:
Tems11 [23]1 year ago
4 0

Answer:

an idea doesn't not stand

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Round to 2 decimal places *
EleoNora [17]

Answer: The circumference of the dome is therefore 149.15 feet or 47.5π feet

Step-by-step explanation:

A scale is basically referred to as the ratio of the dimensions of an object as represented in a draft to the real or true dimensions of the object being drafted.

The figure(s) on the left of the ratio sign represents the size and dimensions of the model with respect to the actual size or dimensions of the object. On the other hand, the figure on the right hand size represents the actual dimensions and size of the real object.

So, if an object is being drawn with the ratio, 1cm : 5cm it means that the size of the object is being reduced because every 5cm of the actual object will always be represented by 1cm in the drawing. If the object is being drawn with a scale of 5cm : 1cm then the actual size of the object will be increased in the drawing. That is, for every 1cm in the actual dimensions of the object, there will be a 5cm representation in the drawing.

Now, the architect draws with a scale of 0.25 inches : 1 foot. If the diameter of the hemispherical dome is 23.75 inches in the scale model, then the actual diameter of the dome is:

0.25 inches ------- 1 foot

23.75 inches ------- ? feet

= 23.75/0.25 × 1

= 95 feet

Therefore, the actual diameter of the dome is 95 feet. We are now required to find the circumference of this dome.

The dome is a hemisphere which literally means half of a sphere. So, if the formula for finding the circumference of a sphere is πd, that of a hemisphere will then be πd/2. Since the diameter is already known to be 95 feet, the circumference of the hemisphere =

(π × 95)/2

=47.5π feet

Or

If π = 3.14, then the circumference = (3.14 × 95)/2 = 149.15 feet

The circumference of the dome is 149.15 feet or 47.5π feet

5 0
3 years ago
Identify each number as prime or composite.Then list all of it's factors
azamat
Prime numbers : 3, 29
Factors of 3 : 1, 3
Factors of 29 : 1, 29
Composite numbers : 6, 15, 24
Factors of 6 : 1, 2, 3 , 6
Factors of 15 : 1, 3 , 5, 15
Factors of 24 : 1, 2, 3, 4, 6, 8, 12, 24
3 0
3 years ago
Area model division 246÷3
lord [1]
246 divided by 3 should equal 82
4 0
3 years ago
The meteorologist recorded the amount of rainfall, in centimeters, at 10 different locations during 1 day and then arranged the
nasty-shy [4]
D.2.5 cm. I think...
6 0
3 years ago
How many solutions does the equation have ? <br> –9(2+8) = -92 – 72
denpristay [2]

Answer:

5

Step-by-step explanation:

8 0
2 years ago
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