Here's the question you clicked on:
rafeds08
Two squares are inscribed in a semicircle, as shown. The area of the smaller square is 16. What is the area of the larger square?
wow, that's not too easy, is it?
that geometry could give you a radius of the larger square, if you knew anything at all about the dimensions or area
sorry, not "radius of square" (it's late) diagonal of square = radius of circle
I stand ready to be wow'd... please continue...
i mean thats the info needed to be given, then u can find the area
ok, I'm with you on that...
I thought you were about to pull some geometry magic...
expectations run high, ya know...
|dw:1349248195417:dw| i hope the following figure solves it , let y be the length of side of big square, then \[ r=\sqrt{y^2+(y^2/4)}\] and also from the other traingle \[r=\sqrt { 16+(4+y/2)^2 }\] equate both the equations and solve for y ,and ares of bigger square is y^2
@rafeds08 solve the above equations to get the answer
I haven't solved, but that appears logical... well done :)
thanks @JakeV8 , i haven't solved it either but i think solving these equations will give the answer
I agree... good eye to see another way to define "r". Nitpick... looks like you drew a right angle symbol on the inside of the larger triangle with sides r, y, and y/2, situated along the other radius line drawn toward the smaller circle. This appears misplaced, or the symbol is something else, or I don't get it (option c is always a good guess)... Can you explain?
|dw:1349249269180:dw| which symbol can u point it out....
@JakeV8 i just used the orignal diagram, but icant seem to find the symbol u r talking abt, to me it clearly looks that both the triangles are right angled.
never mind :) I just realized it's the label "r" on the second radius... my oops!
@rafeds08 did u get the answer on solving the above equations
thus radius of big circle is 8