Help me with this!

The semicircle above has a radius of 7.

Find X.

Note by I'm a Malaysian!
1 year, 3 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

Sort by:

Top Newest

Yes, it not possible to get the value of X. link

Elizabeth King - 1 year, 2 months ago

Log in to reply

Not enough info. I would expect to be given the length of the other horizontal. Then it would be easy.

Jeremy Galvagni - 1 year, 2 months ago

Log in to reply

BTW, is it possible?

I'm a MALAYSIAN! - 1 year, 3 months ago

Log in to reply

Yes it is possible to calculate but check whether all the information is required or not . I think some information is missing .

Ram Mohith - 1 year, 3 months ago

Log in to reply

I don't really know, but it only gave me the radius.I'll check again later

I'm a MALAYSIAN! - 1 year, 3 months ago

Log in to reply

@I'm a Malaysian! If we know the length of the chord we can easily find the answer.

Ram Mohith - 1 year, 3 months ago

Log in to reply

@Ram Mohith 2nd cord?

I'm a MALAYSIAN! - 1 year, 3 months ago

Log in to reply

@I'm a Malaysian! Yes the chord above the diameter

Ram Mohith - 1 year, 3 months ago

Log in to reply

@Ram Mohith It says the second cord is the bottom of an imaginary square and the surface area of two connected in form of up and down cube created with the imaginary square is 50.

I'm a MALAYSIAN! - 1 year, 3 months ago

Log in to reply

×

Problem Loading...

Note Loading...

Set Loading...