how do i find the area of the shaded portion within a square

Question

hero · Answer

Can you please provide the specific problem you are working on?

anonymous · Answer

its hard to explain because its has a picture of the square it has a straight line under the square that has 12m and then inside the square its shaded in the middle but its slanted and the numbers around the shaded area in the square is 13m and 13m and thats all it has

anonymous · Answer

Can you draw the picture? Or perhaps scan it?

anonymous · Answer

how do i scan it

anonymous · Answer

Using a scanner?

anonymous · Answer

attachment

anonymous · Answer

can you see that

anonymous · Answer

Yeah. Give me a minute.

anonymous · Answer

ok thanks

anonymous · Answer

Find the small base of the little triangles using Pythagoras, which you can use to find the area of each little triangle.  Double that (there are two triangles), and subtract your result from the total area of the big square (which you know is 12 x 12).  That's the area of the shaded parallelogram.

anonymous · Answer

Okay, so you find the area of the square. And then, find the area of the parallelogram.

anonymous · Answer

@geoffb We can't use the Pythagoras theorem. We don't know the base, do we?

anonymous · Answer

ok guys im not that smart dropped out in 7th grade lol i dont know what pythagoras
is

anonymous · Answer

$13^{2} - 12^{2} = b^{2}$

anonymous · Answer

An alternate to pythogoras theorem?

hero · Answer

It would have been easier to just simply draw it:

|dw:1352357858560:dw|

anonymous · Answer

The answer's 84 I think.

anonymous · Answer

is it 84 squared

anonymous · Answer

Not squared.  Just 84.

anonymous · Answer

Yeah.

anonymous · Answer

Just 84 square units.

anonymous · Answer

thanx guys i need help with a couple more please

anonymous · Answer

A cereal factory has three machines for dispensing cereal into bags. A test is done in which 8 bags are filled by each machine and the bags are weighed.


The results in grams:



Machine 1:  309, 311.5, 313, 310, 308, 314, 312, 310.5
Machine 2:  310, 309, 314, 311, 309, 314.5, 312.5, 310
Machine 3:  309, 310.5, 313.5, 315.5, 310, 311, 312, 309.5
 
Which statement is true about the mean output of the three machines?

anonymous · Answer

Answer:  	
	a. Machine 1 has the highest
	b. Machine 2 has the highest
	c. Machine 3 has the highest
	d. All three machines have the same mean
	e. Two machines share the highest mean

anonymous · Answer

Nah, Machine 3 has the highest.

anonymous · Answer

http://www.gedforfree.com/ged/geddata/16/gedgraphics/question_2.png

hero · Answer

Yep, machine three. My mental math failed me.