) A 12-ft high flagpole is standing vertically at the edge of the roof of a building. The angle of elevation of the top of the pole from a point on the ground that is 64 ft from the base of the building is 78° and 50'. Find the height of the building. a) 112.2 ft b) 212.2 ft c) 312.2 ft d) 412.2 ft
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.
3) A 12-ft high flagpole is standing vertically at the
edge of the roof of a building. The
elevation of the top of the pole from a point on
the ground that is 64 ft from the base of the
building is 78° and 50'. Find the height of the
building.
a) 112.2 ft
b) 212.2 ft
c) 312.2 ft
d) 412.2 ft
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images