kikidsgn123
19.06.2021 •
Mathematics
A training field is formed by joining a rectangle and two semicircles, as shown below. The rectangle is 82 m long and 53m wide. What is the length of a training track running around the field? (Use the value 3.14 and do not round your answer. Be sure to include the correct unit in your answer.)
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Ответ:
436.42 m
Step-by-step explanation:
We are to determine the perimeter of the field
perimeter = perimeter of rectangle + perimeter of the two semicircles
Perimeter of a rectangle = 2 x (length + breadth)
2 x (82 + 53) = 270m
Perimeter of a semicircle = 1/2πD
perimeter of the 2 semicircles = 2 x (1/2 x 3.14 x 53) = 166.42
Perimeter = 270 + 166.42 = 436.42 m
Ответ:
6795797.90627
Step-by-step explanation:
the fourth one 0_0