Jim, Dan and David share some sweets in the ratio 5:4:5. Jim gets 65 sweets. How many did Dan get?

step-by-step explanation:

this is not possible to solve with the info given.   you need at least an one angle somewhere.

hello from mrbilldoesmath!

answer:   x^2 + y^2 = 1024

discussion:

the equation of a circle with center (h,k) and radius "r" is

(x-h)^2 + (y-k)^2 = r^2.

in our case

(x-0)^2 + (y-0) ^2 = 32^2 = 1024

you,

mrb