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Pls help me solve for geometry

Pls help me solve for geometry-example-1
User Pbell
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In rhombus PQRS, with PR as the diagonal dividing it into triangles PRS and PRQ, angles SPR and QPR are given. Opposite angles in a rhombus are equal, so
\(\angle SPQ\) is also
\(63^\circ\).

In the given rhombus PQRS, where PR is the diagonal dividing the rhombus into two triangles PRS and PRQ, you have angles SPR and QPR given as:


\[ \angle SPR = 2x + 13 \]


\[ \angle QPR = 3x - 12 \]

In a rhombus, opposite angles are equal. Therefore,
\(\angle SPQ\) is opposite to
\(\angle SPR\), and
\(\angle SPQ\) is also opposite to
\(\angle QPR\).


\[ \angle SPR = \angle SPQ \]


\[ \angle QPR = \angle SPQ \]

Since
\(\angle SPR\) and \(\angle QPR\) are both opposite to
\(\angle SPQ\), they must be equal.

2x + 13 = 3x - 12

Now, solve for x:

13 + 12 = 3x - 2x

25 = x

Now that we have the value of x, substitute it back into either of the angle expressions. Let's use
\(\angle SPR\):


\[ \angle SPQ = 2x + 13 \]


\[ \angle SPQ = 2(25) + 13 \]


\[ \angle SPQ = 50 + 13 \]


\[ \angle SPQ = 63 \]

Therefore,
\( \angle SPQ = 63 \).

User Tushar Chutani
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