triangle PQR is a right angled at Q. if PQ=35cm and PR=37cm, then find the lenght of QR
Answers
Answered by
8
Answer:
H^2 = B^2 + P^2
37^2 = B^2 + 35^2
1369 = B^2 + 1225
1369-1225 = B^2
144 = B^2
12 = B
QR = 12cm
Answered by
3
Given :
PQR is a right-angled triangle
PQ = 35 cm
PR = 37 cm
To find:
The length of QR
Calculation:
By using Pythagoras theorem in a right-angled triangle,
PR² = PQ² + QR²
By substituting values, we get
=> PR² = PQ² + QR²
=> 37² = 35² + QR²
=> 1369 = 1225 + QR²
=> QR² = 144
=> QR = 12 cm
The length of the side QR is 12 cm
Similar questions