Triangle A is dilated by a scale factor of 2. What is the ratio of the perimeter of Triangle A to the perimeter of Triangle B?
2 answers:
Answer:
the ratio is 1:2
Step-by-step explanation:
Triangle A is dilated by a scale factor of 2
Suppose we take triangle A with sides a,b,c
To find the perimeter we add all the side. So the perimeter of triangle A is
Triangle A is dilated by a scale factor of 2. So we multiply the sides of the triangle by 2. when we multiply the sides by 2 then sides becomes 2a,2b, 2c
Now the perimeter of triangle B is
So the perimeter of triangle B is 2 times the perimeter of triangle A
the ratio is 1:2
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I can't see the picture of the pole posted on this question, but I'm assuming it's something like this:
Use Pythagorean Theorem.
Use Pythagorean Theorem.
Given:
a.) The scale of the model is 1 in equals 47 ft.
b.) Danielle constructs a scale model of a building with a rectangular base her model is 2 inches in length and 1 inch in width.
To be able to determine the actual area of the base, let's first identify the actual dimensions of the base.
We get,
Let's now solve for the area of the base, since it is a rectangle, we will be using the formula below:
We get,
Therefore, the actual area of the base is 4,418 ft.².