In a parallelogram PQRS. PT and QT are angular bisectors of angle P and angle Q then angle PTQ is
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the angle PTQ is 90degree I hope it will help you
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Given: the angle bisectors of ∠P and ∠Q are PT and QT, respectively.
To find: the measure of ∠PTQ.
Step-by-step explanation:
Step 1 of 2
The sum of adjacent angles pf a parallelogram is 180°.
⇒ ∠P+∠Q=180°
The angle bisector divides the angle in two equal parts.
⇒ ∠SPT=∠TPQ and ∠RQP=∠TQP.
As ∠P+∠Q=180°.
∠SPT+∠TPQ+∠RQP+∠TQP=180°.
2∠TPQ+2∠TQP=180°.
∠TPQ+∠TQP=90°.
Step 2 of 2
Applying triangle sum property in ΔPTQ.
∠TPQ+∠TQP+∠PTQ=180°
90°+∠PTQ=180°
∠PTQ=180°-90°
∠PTQ=90°.
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