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Questions tagged [similitude]

For questions related to similitude (or similarity). $2$ objects are similar if one can be obtained from the other by uniformly scaling, possibly with additional translation, rotation and reflection.

2 votes
1 answer
48 views

Comparing the dissimilarity of the order of integer sequences

Suppose I have several sequences of integers. Let us call each sequence as $a$, $b$, $c$ and so on. The six integers from $1$ to $6$ tell me the order of separation of compounds from a chromatographic ...
ACR's user avatar
  • 297
0 votes
1 answer
53 views

How to find the lengths of a similar triangle

The triangle $a, b, c$ is similar to the triangle $b, c, d$, where $a < b, b < c, c < d$. I need to find a formula to find the possible length(s) of $d$ given $a, b, c$. I've tried using: $q=\...
Chromegism's user avatar
2 votes
2 answers
61 views

Seeking Precise Solution for Triangle Area Problem

I hope this message finds you in high spirits. I am writing to seek your expertise in solving a captivating geometry problem that I recently encountered in a competitive exam. Despite my best ...
Raihan Sarker's user avatar
3 votes
1 answer
96 views

If $\triangle {ABC} \sim \triangle {DEF}$, must $\angle {C} = \angle {F}$, or can any angle of $\triangle {DEF}$ be $\angle C$?

I am wondering if triangles $\triangle {ABC}$ and $\triangle {DEF}$ are similar, then this must mean that $\angle {C} = \angle {F}$, or does the order in which the letters of the triangle appear in ...
Princess Mia's user avatar
  • 3,019
0 votes
1 answer
135 views

Prove that triangle $EDC$ is similar to triangle $EAB$, given $CD$ is parallel to $AB$

Prove that triangle $EDC$ is similar to triangle $EAB$, given $CD$ is parallel to $AB$, and specify a reason for similarity. I deduce that triangles $ACE$ and $CDE$ have common height, triangle $EAB$ ...
user avatar
2 votes
2 answers
238 views

A trapezium inside a triangle.

This question was asked in a scholarship test for class 10th. In the given figure, ABCD is a trapezium, AD is parallel to BC and diagonal BD is parallel to XY. 3AD=BC. Find the ratio of AY to AX. My ...
Arya's user avatar
  • 399
3 votes
1 answer
87 views

When does insetting a polygon produce a similar one?

Consider the operation of insetting every side of a polygon by a fixed perpendicular distance, as illustrated (for example) at https://alienryderflex.com/polygon_inset/. For which polygons does this ...
Glen Whitney's user avatar
  • 1,362
0 votes
0 answers
29 views

What function outputs the biggest number for two given numbers taking care of both the sum and the difference of both?

Let's say I have a tuple (a,b), I want a fuction that combines: f(a,b) grows with a+b f(a,b) decreases with (a/b) and f(a,b) decreases with (b/a) In other words I ...
Lerian Acosenossa's user avatar
2 votes
1 answer
44 views

How to locate $O$ if $OA=2OC$?

If you have a segment $[CA]$ and you want to plot the point $O$ such that $(\vec{OC},\vec{OA})=\frac{\pi}{2} (2\pi)$, and $OA=2OC$. How can you plot $O$? From the first condition we know that $O$ ...
Fareed Abi Farraj's user avatar