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04.09.2020 •
Mathematics
A carnival ride consists of four circular cars - a b c d - each of which spins about at its center point The center points of cars a and b are attached by a straight beam as are the center points of c and d The 2 beams are attached at their midpoints by a rotating arm. A plan for the ride uses coordinate plane in which each unit represents one meter. In the plan, the center of car A (-6,-1) and B (-2,-3) and C (3,4) and D (5,0). Each car has a 3m diameter
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Ответ:
Atrium
Ventricles
Explanation:
The upper chambers of the heart are called atrium whereas the lower chambers are called ventricles.
The heart is at the center of the circulatory system which moves blood round the body.
At the atrium, blood returning from the lungs and body parts fills up this part of the heart. It is divided into a left and right atrium. The ventricles pumps blood out of the heart into the body parts and lungs. It has a thicker wall.