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Leona [35]
3 years ago
6

The figures to the right are similar. Compare the first figure to the second. Give the ratio of the perimeters and the ratio of

the areas
(integer or a simplified fraction)

Thank you!​

Mathematics
1 answer:
Anton [14]3 years ago
7 0

9514 1404 393

Answer:

  • perimeter: 3 : 4
  • area: 9 : 16

Step-by-step explanation:

The perimeter ratio smaller : larger is the same as the side length ratio.

  18 : 24 = 3 : 4 . . . smaller : larger perimeter ratio

The area ratio is the square of this.

  3^2 : 4^2 = 9 : 16 . . . smaller : larger area ratio

You might be interested in
What is the answer to 36÷9 using a number line?
Katarina [22]

To divide 36/9 using the number line you have to jump from zero with length of 9 until reach 36, and the result will be the number of jumps.

I do the jumps by steps, but you can draw in the number line:

0. First jump from 0 to 9.

,

1. Second jump from 9 to 9+9=18.

,

2. Third jump from 18 to 18+9=27.

,

3. Fourth jump from 27 to 27+9=36.

,

4. Great!! We already reach 36.

So, we need four jumps of 9 to reach 36 from 0.

So, the result is 36/9=4

4 0
1 year ago
Pls tell me the answer with an explanation how you got it!
Flura [38]

Answer:

25 degrees

Step-by-step explanation:

40 + 50 = 90

2 x 25 = 5

8 0
3 years ago
Help me plz with my hw
inna [77]
Circumference is found with the formula

c = pi × d

d is diameter and we will use 3.14 for pi.

The diameter is the measure across the center of the circle. In the first problem, you are given the radius, so we have to multiply by 2 to get the diameter. Then we can use the formula.

12.4 in × 2 = 24.8 in (that's the diameter)

c = pi × D
c = 3.14 × 24.8
c = 77.872 inches

circumference is 77.872 inches.

Try the other problems on your own. They are just like this one. Just make sure they are giving you the diameter and not the radius. Post if you have problems.
6 0
2 years ago
Find the perimeter of a rectangular strip of board is 3.28m long and 7.5m
OLEGan [10]

Answer:

21.56 m

Step-by-step explanation:

2(3.28) + 2(7.5)

(twos represent the sides)

6.56 + 15

= 21.56 m

8 0
3 years ago
Factor completely, then place the factors in the proper location on the grid. 3y4 - 2y2 - 5
vovangra [49]

Answer:

(3y^2-5)(y^2+1)

Step-by-step explanation:

Let's see if we can think of two numbers that multiply to be 3(-5)=-15

andd add up to be -2

How about -5 and 3? That work's! :)

3y^4-5y^2+3y^2-5

Factor by grouping!

y^2(3y^2-5)+1(3y^2-5)\\(3y^2-5)(y^2+1)

8 0
3 years ago
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