Just double checking
A square has a triangular hole in it. What is the area of the figure?

100 in2
92.5 in2
85 in2
70 in2

Question

Just double checking
A square has a triangular hole in it. What is the area of the figure?


100 in2
92.5 in2
85 in2
70 in2

ragingsquirrel · Answer

attachment

hero · Answer

$$A_{total} = s^2 - \frac{bh}{2}$$

ragingsquirrel · Answer

It's 85 right?

anonymous · Answer

It might be the area of the square, less the area of the triangle. I think that is about$$10^{2}-3*5/2=92.5$$Approximately.

hero · Answer

By the way, @AnimalAin , that would be an exact value, not an approximate one.

anonymous · Answer

Measured distances are always approximate, no?

hero · Answer

We're computing, not measuring

anonymous · Answer

OK, I concede.  LOL

anonymous · Answer

we only use approximation when taking data....when we collect data the tools we use have some degree of uncertainty.

ragingsquirrel · Answer

Can i just have the answer...

hero · Answer

@AnimalAin, if what you said were true, the formula would look like this: 

$$A_{total} \approx s^2 - \frac{bh}{2}$$

anonymous · Answer

Got me again!

anonymous · Answer

well what Hero is saying is find the area of the square then find the area of the triangle.

Subtract the area of the triangle from the square.

anonymous · Answer

Check the fourth post in the thread.