Anonymous at Thu, 27 Jun 2024 08:16:02 UTC No. 16256299
Line in the low right corner
Anonymous at Thu, 27 Jun 2024 10:20:36 UTC No. 16256380
>>16256297
The mistake is the very first c^2. The internal diamond is a non-square rhombus in the general case (when a =/= b), so c^2 isn't how you calculate its area. Your calculations work for the a = b case.
Anonymous at Thu, 27 Jun 2024 11:57:08 UTC No. 16256487
>>16256380
what you mean all sides of the internal diamond are c. so i can use c^2 for the surface area no?
Anonymous at Thu, 27 Jun 2024 15:28:19 UTC No. 16256729
>>16256487
No. The figure with four sides of length c isn't necessarily a square. It looks like a square in your drawing only because you've made a and b look like they're equal. The figure is in fact a rhombus, so you have to use one of the area formulas for a rhombus.