Geometry

A triangle ABC ABC with sides AB=20; BC=16; CA=417 AB = 20; \space BC = 16; \space CA = 4\sqrt{17} . Point D, E, F D, \space E, \space F are the midpoints of BC, CA, AB BC, \space CA,\space AB respectively. Point P P lies on segment EF EF, so that AP AP and EF EF are perpendicular to each other. Point QQ also lies on EFEF, so that DQ DQ and EFEF are perpendicular to each other. Find the length of PQPQ.

#Geometry

Note by Fidel Simanjuntak
3 years, 11 months ago

No vote yet
1 vote

  Easy Math Editor

This discussion board is a place to discuss our Daily Challenges and the math and science related to those challenges. Explanations are more than just a solution — they should explain the steps and thinking strategies that you used to obtain the solution. Comments should further the discussion of math and science.

When posting on Brilliant:

  • Use the emojis to react to an explanation, whether you're congratulating a job well done , or just really confused .
  • Ask specific questions about the challenge or the steps in somebody's explanation. Well-posed questions can add a lot to the discussion, but posting "I don't understand!" doesn't help anyone.
  • Try to contribute something new to the discussion, whether it is an extension, generalization or other idea related to the challenge.
  • Stay on topic — we're all here to learn more about math and science, not to hear about your favorite get-rich-quick scheme or current world events.

MarkdownAppears as
*italics* or _italics_ italics
**bold** or __bold__ bold

- bulleted
- list

  • bulleted
  • list

1. numbered
2. list

  1. numbered
  2. list
Note: you must add a full line of space before and after lists for them to show up correctly
paragraph 1

paragraph 2

paragraph 1

paragraph 2

[example link](https://brilliant.org)example link
> This is a quote
This is a quote
    # I indented these lines
    # 4 spaces, and now they show
    # up as a code block.

    print "hello world"
# I indented these lines
# 4 spaces, and now they show
# up as a code block.

print "hello world"
MathAppears as
Remember to wrap math in \( ... \) or \[ ... \] to ensure proper formatting.
2 \times 3 2×3 2 \times 3
2^{34} 234 2^{34}
a_{i-1} ai1 a_{i-1}
\frac{2}{3} 23 \frac{2}{3}
\sqrt{2} 2 \sqrt{2}
\sum_{i=1}^3 i=13 \sum_{i=1}^3
\sin \theta sinθ \sin \theta
\boxed{123} 123 \boxed{123}

Comments

It should be 33523 \sqrt{\frac{35}{2}}, but from the source problem, it's not. But i still sitck to 33523 \sqrt{\frac{35}{2}}.

Jason Chrysoprase - 3 years, 11 months ago

Log in to reply

No, I think it's an integer. Check your LINE

Fidel Simanjuntak - 3 years, 11 months ago

Ahmad Saad - 3 years, 11 months ago
×

Problem Loading...

Note Loading...

Set Loading...