A train travels 120km to the nearest kilometer for 3.5 hours correct to the 2 significant figures. Calculate the least speed of the train to 2 decimal places.

Least speed = 33.66 km/h

Step-by-step explanation:

The least distance is 119.5 km, and the most time it took was 3.55 hours.

Therefore the least speed = least distance/most time

= 119.5/3.55 km/h

= 33.66 km/h

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²

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step-by-step explanation: