In the picture below, we have triangle DEF that has been dilated from center O by scale factor r = triangle is noted by D'E'F. We also have a triangle D'EF, which is congruent to triangle DEF (i. e., A DEF =A D'EF). Describe the sequence of a dilation followed by a congruence (of one or more rigid motions) that would map triangle 1 2 The dilated d'E'T onto triangle D'EF.

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Step-by-step explanation:

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b