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1. Nine points are arranged in a 3 x 3 grid, as shown below.  In how many different ways can you choose three points, so that they form a triangle?

 

 

2. A right isosceles triangle has a hypotenuse of 1.  What is the area of the triangle?

 Oct 2, 2021
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1. How many ways can you choose 3 points - how many ways can you choose 3 points that form a line?

2. If you connect two right isosceles triangle with a hypotenuse of 1 by the hypotenuse, you get a sqaure. Find the area of the square/2.

:))

=^._.^=

 Oct 2, 2021

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