Download Practice: Pythagorean Theorem and Trigonometry Warm

Practice: Pythagorean Theorem and Trigonometry
Warm-Up
The angle of elevation is the angle between the horizontal and the line of sight when looking
upwards.
Sketch a diagram for this problem, then solve it:
Practice
1)
2)
3)
4)
5)
6)
b) To the nearest mile, how far is it from Buffalo to New York City directly?
c) How many miles would we saved if the road connected Buffalo to NYC directly,
rather than traveling through Albany?
Homework
1.
2.
3. Given the following triangle, find:
degree.
a) cos A
4. Given RST, r = 14 and S is 38 , find:
a) the side lengths to the nearest tenth.
b)
R to the nearest degree.
b) Angle A to the nearest
5. A painter places a 20-foot ladder against the side of a building forming a 70 angle with the ground. If
the building forms a right angle with the ground, how far up the side of the building does the ladder
reach to the nearest tenth of a foot.
6.