Answer:
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Step-by-step explanation:
Given

Required
Determine 
We know that:

This gives:


Collect like terms


Take square roots


By tan identity


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Step-by-step explanation:
radius=6cm.
π=22 over 7
circumference=2πr
circumference=2×22 over7×6
circumference=51.04cm
Answer:
2
Step-by-step explanation:
-10 - 5 + 2 + 6 + 17 = 10
10 / 5 = 2
Answer:
a
Step-by-step explanation:
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