Quick Q

[B3ndythumbs]

This test is from 2006 Test 07B UIL.

Picture frams have the same height-to-width ratio and are made by cutting shaped moulding at a 45 degree angle. if a small 22 square inch requires 18.5 inches of moudling how much moulding is needed for a 259 square inch frame?

also how do u find the angles of a scalene triangle if u know all sides? (07B-39)

[The3point14]

46 is a scaling question. Since you have a linear value and a quadratic value, you need to get them both in either linear or quadratic.

You can set up either proportion
[unparseable or potentially dangerous latex formula] *linear*

or

[unparseable or potentially dangerous latex formula] *quadratic*

On the 2nd proportion, be careful to solve for x, and not x².

#39. To find the angle of a triangle with the given sides you use law of cosines

[unparseable or potentially dangerous latex formula]

where c is the side opposite of the angle you are finding.