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3 years ago

13

(1 pt) Which sentence best describes any trapezoid? A. It has 4 congruent sides. B. It has only 1 pair of parallel sides. C. It

has at least 2 obtuse angles. D. It has at least 2 right angles.

2 answers:

UNO [17]3 years ago

7 0

The answer is B.

Trapezoids only have 1 pair of parallel sides.<span />

wlad13 [49]3 years ago

3 0

Im not entirley sure but i do think that it is going to be A.

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Answer:

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Step-by-step explanation:

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Lisa [10]

SOLUTION:

$m\angle C=63^o,AB=28,AC=29,find\text{ }m\angle B$

A simple sketch will help;

We can use the sine rule to solve for the angle B;

$\begin{gathered} \frac{28}{sin63}=\frac{29}{sinB} \\ \\ sinB=\frac{29sin63}{28} \\ \\ sinB=0.9228 \\ \\ B=67.34^o \end{gathered}$

Thus;

$m\angle B=67.34^o$

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