A diameter is a line segment joining two points on a circle and passing through the center of a circle.

Mathematics

1 answer:

bija089 [108]3 years ago

8 0

True. Diameter is a line segment joining two points on a circle and passing through the center of the circle.

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Step-by-step explanation

We can divide the track in two parts. For the first half of the track the average speed the car achieved was 230 km/hr and we need to make sure that the average speed of the full track is 250 km/hr. Then, we can calculate the average speed of the two parts of the track and force this to be equal to 250 km/hr. In equation, defining $v_2$ as the average speed of the second half: