in ∆pqr, ∠pqr =90°. pr =13 and qr =5 cm the length of pq
Answers
Answered by
1
Step-by-step explanation:
It will help you _
Attachments:
Answered by
1
Hie! Here's your answer!
Answer:
Length of PQ = 12cm
Step-by-step explanation:
Given:- In ΔPQR, anglePQR = 90°
PR = 13cm, QR = 5cm
To Find:- Length of PQ
Solution:- In right-angled triangle,
By pythagoras theorem,
(as we know, PQ- perpendicular, QR- base, PR- hypotenuse)
∴PR² = PQ² + QR²
∴13² = PQ² + 5²
∴169 = PQ² + 25
∴169 - 25 = PQ²
∴PQ² = 144 (taking square root on both sides we get)
⇒PQ = 12
#HappyStudying
Similar questions