A man is 550 feet from the base of a very tall building. The building is standing on a large flat area. Using a surveying instrument, he measures the angle between the ground and the top of the building from where he is standing. The angle is 57.1 degrees. How tall is the building?

Q: a triathlon begins with a swim along the shore of 4.2 miles . The racers then bike for 6.2 miles .…

A: here we will apply cos law and find the other side.

Q: Hannah leans a 16-foot ladder against a wall so that it forms an angle of 61° with the ground.…

A:

Q: How many miles (1 mile = 5280 feet) is the aircraft from the airport? Round the answer to the…

A: We will use concept of angle of depression.

Q: You have a ramp that is 3.14 meters long, as measured along the surface of the ramp. You raise that…

A:

Q: Lisa stands at the window of a building looking for her lost cat. She spots her cat 58.5 m away from…

A: Lisa spots the cat from the window of building which is at a height of 12.6 m.  The cat is at a…

Q: Find the reference angle for -420 degrees

A:

Q: Find the angle of elevation of the sun, in degrees, when a 12 meter tall telephone pole casts a 21.6…

A:

Q: A child is enjoying a Saturday afternoon flying a kite. While holding the string 4 feet above the…

A:

Q: On the highway, if you're traveling 65 mph, you travel about A. 1/2 mile B. 20 feet C. 50 feet D.…

A:

Q: There is an escalator that is 1083.6 feet long and drops a vertical distance of 196.1 feet. What is…

A:

Ratios

A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.

Trigonometric Ratios

Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.