Given two similar triangles, what would you need to know to find an unknown length? How would you find that unknown length?

2 answers:

8 0

What would you need to know to find an unknown length?
For this case you need to know three measurements.
Two measures of the triangle that is similar and a measure of the original triangle.
Thus, the fourth measure is what will be the unknown side and is the one that we must find.

How would you find that unknown length?
Let:
a, b, c: known sides
x: unknown side
By similarity of triangles we have:
x / a = b / c
From here, we clear the value of the unknown side

Kipish [7]4 years ago

8 0

<h2>Sample Response:</h2>

I would need to know the length of a pair of corresponding sides, so I could set up a proportion to solve for the unknown length. I would set the ratio of the known corresponding sides equal to the unknown measure, making sure I put corresponding measures from the triangles in the same positions in the ratios. Then I would cross-multiply to solve.

You might be interested in

A(-5,-4) ——> A’ is a glide reflection where the translation is (x,y)—->(x+6,y), and the line of reflection is y=3. What ar

Nastasia [14]

Solution:

The Point in the coordinate plane is A(-5,-4).

Perpendicular or shortest Distance from line y=3 that is (-5,3) to point (-5,-4) is

$=\sqrt{(-5+5)^2+(3+4)^2}\\\\=7$

When it is reflected through the line, y=3, the coordinate of point A (-5,-4) changes to (-5,3+7)= B(-5,10).

Now, the Point B is translated by the rule , (x,y)—->(x+6,y),

So,the point B is translated to, (-5+6,10)=(1,10)

Option C: (1,10) is the glide reflection of point A(-5,-4).

8 0

4 years ago

Read 2 more answers

Mary picked 24 apples. She used 2/6 of the apples to make apple sauce. How many apples did Mary use to make apple sauce?

photoshop1234 [79]

Mary used 8 apples!!

24 divided into 6 is 4, then you times that by 2

5 0

3 years ago

Read 2 more answers

Solving quadratic equations by factoring completely equivalent equation for minus 7X -60 equals X squared +10 X

vivado [14]

X
=
−
2
,
−
5 good luck buddy

8 0

3 years ago

Three consecutive integers are n-1, n and n+1. Write an expression for the sum of the three integers.

svlad2 [7]

N-2,n and n+2;n-3,n and n+3,n-4,n and n+4....

6 0

4 years ago

You plan to deposit $5,600 at the end of each of the next 20 years into an account paying 10.8 percent interest. a. How much wil

rjkz [21]

1 answer

1a. If you deposit $5,600 at the end of each of the next 20 years into an account paying 10.8 percent interest, how much money will you have in the account ...

8 0

2 years ago