In the triangle PQR, ∠Q= 900, ∠P= 600 and
PQ =8cm then the length of QR is
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Given:
∠Q = 90°
∠P = 60°
PQ = 8cm
To find:
QR =?
Step-by-step explanation:
- Given that in ΔPQR, ∠Q = 90° & ∠P= 60°.
- This means ΔPQR is a right-angled triangle in which ∠Q is a right angle.
- The length of a side PQ is 80cm.
- Now, We have to find that, the length of a side QR.
- From the figure, it shows that the length of a side QR the tan60° times the length of a side PQ.
QR = PQ × tan 60°
= 8 × tan 60°
QR = 13.8564
- Hence the length of a side QR is 13.8564.
Refer to the following attachment:
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