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ella [17]
3 years ago
5

If the scale factor is 5, how many times larger will the scaled copy's area be?

Mathematics
1 answer:
Lady bird [3.3K]3 years ago
4 0

Answer:

25 times

Step-by-step explanation:

Scale factor is the ratio of dimensions of the image and the preimage.

Scale factor = \frac{\text{Side length of image}}{\text{Side length of preimage}}

Since area of a figure is the square of dimensions.

Area = Length × Width

Therefore, area scale factor will be the ratio of square of the dimensions of image and preimage.

Area scale factor = \frac{\text{Area of the image}}{\text{Area of the preimage}}

                             = (Scale factor)²

                             = 5²

                             = 25

Therefore, area of the image will be 25 times the area of the preimage.

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Please help me with this problem​
AleksandrR [38]

Answer:

The answer to your question is Area = 6 u²

Step-by-step explanation:

Process

To find the area of the picture divide the figure between a square and a right triangle, determine the area of each figure and finally add them up.

1.- Calculate the area of the square

Area = side x side

        = 2 x 2

        = 4 u²

2.- Calculate the area of the triangle

Area = base x height / 2

base = 2   height = 2

Area = 2 x 2 /2

Area = 2 u₂

3.- Total area

Area = 4 + 2

       = 6 u²

3 0
3 years ago
Please help! I'm getting timed.
Molodets [167]
Hi there! The answer is A.

t = 2(s + 2)
To get a proper idea of the type of function this formula represents we work out the parenthesis.

Working out the parenthesis can for instance be done using rainbow technique.
t = 2s + 4

We can now see sinilarities between this function an the general function of a line in slope intercept form
y = mx + n

The function t therefore describes a line with slope 2 and y-intercept 4. Therefore the answer is A.
3 0
3 years ago
Find the height of triangle
Sophie [7]

Answer:

60

Step-by-step explanation:

First, divide 120 by two and get 60. Now do 120-60 to get 60. Set up proportion

60/x = x/60.

Cross multiply

x^2 = 3600

and now find the square root of 3600

60

8 0
2 years ago
(take π=22/7). height of trapezium with parallel sides 6cm and 8cm and 63cm2.​
Nataly_w [17]

Answer:

Circumference = 39.6 cm

We know:

Circumference of a circle = 2πr

⇒39.6 =2×

22

7

×r⇒

39.6×7

2×22

=r⇒r=6.3 cm

Also,

Area of the circle = πr2

=

22

7

×6.3×6.3=124.74 cm2

Step-by-step explanation:

<em>#</em><em>C</em><em>arryOnLearning</em>

5 0
3 years ago
Ariel incorrectly says that 2 5/8 is the same as 2.58
Thepotemich [5.8K]

Answer:

ariel is incorrect because 2 5/8 is equal to 2.63

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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