C = pi×diameter OR C = 2pi×radius
So...
17.8 = pi×diameter 17.8 = 2pi×radius
17.8/pi = diameter 17.8/2pi = radius
<span>5.66591597407 = diameter or d
</span><span>2.83295798704 = radius or r</span>
Answer:
2cm
Step-by-step explanation:
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3x - 2 = x + 10
So, 2x = 12 and x = 6
Answer:
0.6 km/hr
Step-by-step explanation:
Speed downstream: 13/5= 2.6 km/hr
Speed upstream: 7/5= 1.4 km/hr
Therefore, Velocity of current is: 1/2 (2.6-1.4) km/hr = 1/2(1.2) km/hr