
An elliptical mirror has an eccentricity of 0.8. The mirror is surrounded by a 2-inch wide golden frame and is 34 inches tall including the frame. If a replacement mirror is being cut from a rectangular sheet of glass, what is the minimum dimensions needed for the sheet of glass?

<u>B</u><u>.</u><u> </u><u>1</u><u>7</u><u> </u><u>i</u><u>n</u><u>c</u><u>h</u><u>e</u><u>s</u><em><u> </u></em><u>b</u><u>y</u><u> </u><u>8</u><u> </u><u>i</u><u>n</u><u>c</u><u>h</u><u>e</u><u>s</u>
39/10
And/or
3 9/10
And/Or
3.9
63/9 + 40 - 35/7 =
7 + 40 - 5 =
47 - 5 =
42 <==
The order of the size of angles is related to the order of the length that is opposite to that angle.
angle A is across from the smallest side, 2.4.
angle C is across from the middle side, 3.2
angle B is across from the longest side, 5.5
if you think about it, angle B has to be widest angle for it to accommodate the longest length (longer it is, the more you have to open). anlge A has to be the smallest angle for it to correspond with the smallest length
The order of smallest to largest is ∠A, ∠C, ∠B
8-4y(4\3)-5 the right answer