find the length of the tangent PQ drawn from the point P to a circle with centre at O , given that OP =12cm and OQ=5cm
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Answered by
8
Answer:
PQ = √119 ≈ 10.91 cm
Step-by-step explanation:
PQ ⊥ OQ
ΔOPQ is right angled.
PQ = x cm
OQ = 5 cm
OP = 12 cm
x² + 5² = 12²
x² = 144 - 25 = 119
x = √119 ≈ 10.91 cm
PQ = √119 ≈ 10.91 cm
Answered by
2
Step-by-step explanation:
PQ²=PO²-OQ²
PQ²=12²-5²
PQ²=144-25
PQ²=119
PQ=√119cm
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