20. In ∆PQR, ∠Q = 90°,cos P= 5 13 and PR = 65cm then QR (a) 12 cm (b) 25 cm (c) 60 cm (d) 24
Answers
Answered by
0
Answer:
12
Step-by-step explanation:
a 12 is the correct answer
Answered by
1
Answer:
the answer is 12
Step-by-step explanation:
subtract the square of unit digits, and then take its square root
✓(3^2 -5^2)
✓(9-5)
=✓4
=2 at unit digit
so 12
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