# Here is a challengeous question.

In the adjoining figure, AFGB is a square. If FG=15, EF=5, BC=5: Find the area of CBD.

Note:- The figure is not drawn to scale.

Note by A Former Brilliant Member
6 years, 9 months ago

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Challenging*

- 6 years, 9 months ago

eh what do you mean?

- 6 years, 9 months ago

• means I'm correcting a grammatical error. source: common internet

- 6 years, 9 months ago

ha ha i never knew that, is my solution right?

- 6 years, 9 months ago

lol I got no idea I never tried. whenever it's nontraditional mathematics on Brilliant I never give it a go (even though I could solve 90% of the problems if I invested the time) because it's most likely too time consuming for no good reason. Btw I liked Madara way better. now you put this stupid pikachu on lol... not hating on pokemon, but I love Madara. btw don't tell me anything from manga or episodes - I'm like 10 episodes behind.

thx and yeah if you wanna fix a typo - your own or someone else's - use the star before the word like

Mardokay: *you're

Oh btw if they call you Grammar Nazi ignore them - they just jelly or just trollin ;)

- 6 years, 9 months ago

lol i am update in both manga and anime and my physics is not updated yet but i am going for it.BTW madara is better as you said

- 6 years, 9 months ago

Heh cool I'll try to help out with physics with some conceptual problems next week.

Cheers

- 6 years, 9 months ago

thanks

- 6 years, 9 months ago

$6.25 unit^2$

- 6 years, 9 months ago

- 6 years, 9 months ago

similarity and dude it is not chalangeous

- 6 years, 9 months ago

6.25 as 5\20=bd\10 then we can find bd = 5\2 the area = .5 × (5\2 )× 5=25\4=6.25 unite^2

- 6 years, 9 months ago

CBD and CAE are similar. Therefore, BC/CA=BD/AE. Thus BD=2.5 units. Area of CBD=BC.BD/2. Answer is 6.25 unit square

- 6 years, 9 months ago

6.25 cm^2

- 5 years, 4 months ago