Mathematics, 19.07.2019 20:30 hebagaroudi54111

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

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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

Answer from: FireStorm4346

We will need the length and width of any of the triangles and either the length or width of the other to get the unknown length.

What is a triangle?

A triangle is a shape with 3 sides and angles

Given any two similar triangles, we will need the length and width of any of the triangles and either the length or width of the other to get the unknown length.

To get the unknown length, we will take the ratio of the length to the width of both triangles and equate as shown:

l/w = L/x

where x is the unknown length

Cross multiply

xl = Lw

x = Lw/l

Learn more on similar triangles here: link

Answer from: Quest

1. isolate the variable, in this case, d. subtract 35.5 on both sides of the equation.2. 52 subtracted by 35.5 is 16.53. therefore your answer would be d= 16.5this is the basics of pre algebra, isolating variable through adding, subtracting, multiplying, and dividing, if you have any other questions to ask just comment!

Answer from: Quest

total amount to be paid = $19.5

step-by-step explanation:

given ,

original price = $25.99

discount = 25%

discount amount = 25% of original price

discount amount = 25/100 * 25.99

discount amount = $6.49

hence , the total amount to be paid = original price - discount amount

= $25.99 - $6.49

=$19.5