ahmedsarim780 ahmedsarim780

26-05-2021
Mathematics

contestada

A triangle PQR is right angled at R, with PQ=80cm and R=60cm. find QR?
pythagorus theorem

Respuesta :

26-05-2021

Answer:

Solution given:

A triangle PQR is right angled at R, with hypotenuse{h}PQ=80cm

and

base[b]PR=60cm.

perpendicular [P]= QR

by using Pythagoras law

h²=p²+b²

80²=QR²+60²

QR²=80²-60²

QR=[tex]\sqrt{2800}[/tex]

QR=20[tex]\sqrt{7}[/tex]=52.9=53cm

QR=53cm.

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