99keevintaylor012
15.03.2020 •
Mathematics
Paul needs to wrap yellow tape around the perimeter of a new patio in the shape of a semicircle. The diameter of the patio is 42 meters.
Use 3.14 for .
The minimum length of yellow tape Paul needs to wrap around the patio is meters.
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Ответ:
Step-by-step explanation:
We need to find the circumference
d= 42 m
r= 42/2 = 21 m
Circumference =2πr or πd
= 3.14*42
=131.88 m
length of yellow tape Paul needs to wrap around the patio = 131.88/2 + 42
= 65.94 + 42 = 107.94 m
Ответ:
Step-by-step explanation:
Use trigonometry.
tangent = opposite / adjacentWe have:
opposite = 120 ftangle = 60°adjacent = xSolve for x:
tan 60° = 120/xx = 120 /tan 60°x ≈ 70 ft