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Thursday, September 13, 2018

math work number 7

Transportation

rotation stars.

LVL 4
You can rotate the star and it will turn around.
It will be the same shape but it  
Just turned a little.
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enlargement.

Under positive enlargement angles and orientation do not change but lengths and areas do.



LVL 5similar triangles.

Given similar right angled triangles the ratios of side lengths are the same, like this one.

For both triangles the ratio of the sides opposite and adjacent to angle A is 6/8 = 0.75
For any similar triangle this is also true. This ratio is the tangent of angle A, so A = 37°.

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