Answer:
11
Step-by-step explanation:
Step-by-step explanation:
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Answer:
Answer: Your answer would have to be 12x<180
He took 14 friends.
Step-by-step explanation:
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Answer:
b = 108
c = 72
Step-by-step explanation:
The triangle formed by the two tangents is an isosceles triangle.
180 - 72 = 108
108/2 = 54
The other two angles in the triangle are equal to 54 degrees.
A tangent always meets the radius line at a right angle. Therefore, the radius line (between b and c) meets the tangent at 90 degrees.
90 - 54 = 36
Therefore the other two angles of 'b' triangle are equal to 36 degrees.
36 x 2 = 72
180 - 72 = 108
b = 108
And therefore b is equal to 108 degrees.
b + c = 180 (because a straight line is always equal to 180 degrees)
180 - 108 = 72
So c = 72
Let the distance of the race be d miles. We can now write the equation:
which when solved, gives the value of as 4.2 miles.
The time to walk 4.2 miles at 3 mph is 4.2/3 = 1.4 hours.
The answer is 1.4 hours or 1 hour 24 minutes.
