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3 years ago

Given the diagram below, what is mD?

Mathematics

2 answers:

Roman55 [17]3 years ago

6 0

Answer:

A. 72

Step-by-step explanation:

There are two ways to solve this problem. First of all, this quadrilateral is a trapezoid because the top two angles are congruent and there is one pair of parallel lines. One way to solve the problem is to remember all trapezoids have a measure of 360. So, mD=360-(108+108+72); this equals 72. Additionally, in a trapezoid, the bottom two angles are always congruent; therefore, angle D must equal 72 degrees.

max2010maxim [7]3 years ago

3 0

Answer:

Step-by-step explanation:

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