bydsrevenge1433 bydsrevenge1433
  • 12-06-2021
  • Mathematics
contestada

In △ P Q R , △PQR, ∠ Q ≅ ∠ P , ∠Q≅∠P, R P = 15 RP=15 and P Q = 7 PQ=7. Find the length of Q R . QR.

Respuesta :

adefunkeadewole adefunkeadewole
  • 13-06-2021

Answer:

QR = 13.3

Step-by-step explanation:

We solve using Pythagoras Theorem

c² = a² + b²

RP² = PQ² + QR²

QR² = RP² - PQ²

QR = √RP² - PQ²

RP=15

PQ=7

QR = √15² - 7²

QR = √(176)

QR = 13.266499161

Approximately = 13.3

Therefore, the length of QR = 13.3

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