4] In APQR, (PQ) = 8cm, ((QR) = 17cm, ((PR)=15cm. Is APQR a right angled triangle? If it is, name the angle which measures 90°.
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Step-by-step explanation:
lets verify hypotenuse theorem
if (side1)²+(side2)²=(hyp)² then triangle is right angled
PQ²+PR²=QR²
8²+15²=17²
64+225=289
Therefore PQR is right angled triangle
and angle opposite hypotenuse QR is 90⁰
angle P is 90⁰
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