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Find Length of the square :
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Given that the area of the square is 32 cm²:
Area = Length²
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Find Radius :
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Using Pythagorus Theorem to find the radius of the circle:
a² + b² = c²
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Find Area of the semi-circle :
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Answer:
35+65+80=180
Step-by-step explanation:
the total interior angle of a triangle is 180
Answer: the rate of the river's current is 14 mph.
Step-by-step explanation:
Let x represent the rate of the river's current.
The speed of the motor boat in still water is 35 mph.
Since the boat travelled more miles downstream than upstream at the same time, it means that while going downstream, it moved in the direction of the current and while going upstream, it moved against the direction of the current. The total speed downstream would be
(35 + x) mph and the total speed upstream would be (35 - x) mph.
Time = distance/speed
If the boat can travel 7 miles downstream, the time spent travelling downstream is
7/(35 + x)
At the same time it takes to travel 3 miles upstream, the time spent travelling upstream is
3/(35 - x)
Since the time is the same, then
7/(35 + x) = 3/(35 - x)
Cross multiplying, it becomes
7(35 - x) = 3(35 + x)
245 - 7x = 105 + 3x
3x + 7x = 245 - 105
10x = 140
x = 140/10
x = 14
Answer:
34
Step-by-step explanation:
I am smart
Answer:
0.3333
Step-by-step explanation: