To solve the problem we must know about the Ratio.
<h2>What is Ratio?</h2>
A ratio shows us the number of times a number contains another number.
The length of the living space, in reality, is 21 meters.
Given to us
- The scale is given as 2 centimeters equals 2.5 meters.
To find
- the actual length of the living space if the length of the scale drawing is 16. 8 centimeters
<h3>Scale ratio</h3>
As it is given that 2 cm on the scale drawing is equal to 2.5 meters in real, therefore, the ratio can be written as
![\dfrac{\text{Length of the scale drawing}}{\text{Length in reality}} = \dfrac{2\ cm}{2.5\ meters}](https://tex.z-dn.net/?f=%5Cdfrac%7B%5Ctext%7BLength%20of%20the%20scale%20drawing%7D%7D%7B%5Ctext%7BLength%20in%20reality%7D%7D%20%3D%20%5Cdfrac%7B2%5C%20cm%7D%7B2.5%5C%20meters%7D)
<h3>Length of the living space</h3>
Using the same scale ratio,
![\dfrac{\text{Length of the living space in scale drawing}}{\text{Length of the living space in reality}} = \dfrac{2\ cm}{2.5\ meters}](https://tex.z-dn.net/?f=%5Cdfrac%7B%5Ctext%7BLength%20of%20the%20living%20space%20in%20scale%20drawing%7D%7D%7B%5Ctext%7BLength%20of%20the%20living%20space%20in%20reality%7D%7D%20%3D%20%5Cdfrac%7B2%5C%20cm%7D%7B2.5%5C%20meters%7D)
![\dfrac{16.8}{x} = \dfrac{2\ cm}{2.5\ meters}\\\\x=\dfrac{16.8 \times 2.5}{2} = 21\ meters](https://tex.z-dn.net/?f=%5Cdfrac%7B16.8%7D%7Bx%7D%20%3D%20%5Cdfrac%7B2%5C%20cm%7D%7B2.5%5C%20meters%7D%5C%5C%5C%5Cx%3D%5Cdfrac%7B16.8%20%5Ctimes%202.5%7D%7B2%7D%20%3D%2021%5C%20meters)
Hence, the length of the living space, in reality, is 21 meters.
Learn more about Ratio:
brainly.com/question/1504221
Answer: D
Step-by-step explanation:
5x + 4x = 180°
Angles on a straight line add to 180°
When two triangles<span> are </span>congruent<span> they will have exactly the same three sides and exactly the same three angles. The equal sides and angles may not be in the same position (if there is a turn or a flip), but they are there</span>
I got this answer from someone else but it should answer your question for you
About an hour and 7 minutes is remaining
Answer:
Any set of (x , y) whose distance from (4, -3) is 3 units lies on the circle.
Step-by-step explanation:
To find the distance , use the formula
![distance = \sqrt{(x_2 - x_1)^2 + (y_2 -y_1)^2}](https://tex.z-dn.net/?f=distance%20%3D%20%5Csqrt%7B%28x_2%20-%20x_1%29%5E2%20%2B%20%28y_2%20-y_1%29%5E2%7D)
If distance < 3, (x, y) lies inside the circle.
If distance > 3, (x, y) lies outside the circle.
If distance = 3 (x, y) lies on the circle.