Question

in triangle pqr angle P is equal to 60 degree angle Q is equal to 90 degree and QR is equal to 6 root 3 cm then find the value of p r in PQ​

Answer 1

Answer:

PQ=10CM

Step-by-step explanation:

According to Pythagoras Theorem,

(PR)2 = (PQ)2 + (QR)2

PR2 = 82 + 62

PR2 = 64 + 36

PR2 = 100

∴ PR =  √100 = 10 cm

(ii) Given :

PR = 34 cm

QR = 30 cm

PQ = ?

∠PQR = 90°



According to Pythagoras Theorem,

(PR)2 = (PQ)2 + (QR)2

(34)2 = PQ2 + (30)2

1156 = PQ2 + 900

1156 - 900 = PQ2

256 = PQ2

∴ PQ = 16 cm