Ramp Portable
Trigonometry word problems.?
1. A receiving antenna is installed on the edge of a roof of a building 40 meters high. The installer tat said one point of the street 50 meters from the building, the angle of the top of the top of the antenna is 42 degrees. How tall is antenna 2. A truck built a portable ramp that is the exact length of the roof of the truck. If the deck of the truck is 1.2 meters above the ground, and the ramp has a angle of 12 degrees to the ground, which is the length of the roof of the truck?
In general, helps to draw a picture: ABCD ………………….. A is the top of the antenna, B is the top of the building, C is the bottom of the building, D is the point of 50 meters. We are told: C is a right angle is 42 CDA degrees of CD is 50 meters. That's enough to work outside of CA with trigonometry: AC / CD = tan (42 degrees) => AC = 50 m * tan (42 degrees) = … Then subtract 40 meters of the height of the building and no response. 2. Another scheme: ABC ……………… AB = Height = 1.2 m. C angle is 12 degrees. B is a right angle. That is sufficient information to make AC, the length of the deck: CA * sin (12 degrees) = 1.2 meters. Etc
Portable loading ramp demo
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