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pychu [463]
3 years ago
9

If PQRS is a rhombus, which statements must be true? Check all that apply.

Mathematics
2 answers:
Anvisha [2.4K]3 years ago
8 0

The correct answers are: 

PT = RT

PS is parallel to QR.

PR is perpendicular to QS.

<span><span>PQR is supplementary to QPS.</span></span>

<span>
</span>
bezimeni [28]3 years ago
5 0
These statements are true:

\bold{First.} \ \overline{PS} \ is \ parallel \ to \ \overline{QR}

This is <em>true</em> because of the definition of a rhombus which states that opposite sides are parallel.

Then \ \overline{PS} \ is \ opposite \ to \ \overline{QR}

\bold{Second.} \ \overline{PR} \ is \ perpendicular \ to \ \overline{QS}

This is <em>true </em>because the diagonals of a rhombus bisect each other at right angles.

\bold{Third.} \ \overline{PQ}=\overline{RS}

This is<em> true</em> because the four sides of a rhombus are all equals.

\bold{Fourth.} \ \angle PQR \ is \ supplementary \ to \ \angle QPS

This is also <em>true</em>. Two angles are supplementary when they add up to 180 degrees. Angles in rhombus are equal two to two. Let's name:

\angle PQR = \alpha \ and \ \angle QPS = \beta 

Then it is true that:

\angle PQR=\angle PSR \ and \ \angle QPS=\angle QRS

Besides, a rhombus is a quadrilateral and it is true that the interior angles of a quadrilateral add up to 360 degrees, thus:

2\alpha+2\beta=360 \\ \\ \therefore \boxed{\alpha+\beta = 180^\circ}

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