Tell if the measures 7, 11, and 15 can be the side lengths of a
triangle. If so, classify the triangle as acute, obtuse, or
right.
Slide 4
x = 10 and y = 20 Find the values of the variables. Give your
answers in simplest radical form.
Slide 5
Slide 6
Use a special right triangle to write each trigonometric ratio
as a fraction. cos 60 sin 45
Slide 7
DE 5.7; mD68; mF22 Find the unknown measures. Round lengths to
the nearest hundredth and angle measures to the nearest
degree.
Slide 8
A plane is flying at an altitude of 14,500 ft. The angle of
depression from the plane to a control tower is 15. What is the
horizontal distance from the plane to the tower? Round to the
nearest foot.
Slide 9
12 ft A woman is standing 12 ft from a sculpture. The angle of
elevation from her eye to the top of the sculpture is 30, and the
angle of depression to its base is 22. How tall is the sculpture to
the nearest foot?
Slide 10
A surveyor 50 meters from the base of a cliff measures the
angle of elevation to the top of the cliff as 72. What is the
height of the cliff? Round to the nearest meter.
Slide 11
To the nearest degree, what is m A?
Slide 12
24
Slide 13
Write the tangent of T as a fraction.
Slide 14
The ladder, represented by line segment AB, is 17 feet long.
What is the measure of angle A, the angle that the ladder makes
with a horizontal line?
Slide 15
An equilateral triangle has an altitude of 21 inches. What is
the side length of the triangle?
Slide 16
A ladder 15 feet from the base of a window that 35 feet high.
What is the length of the ladder to the nearest foot?
Slide 17
It is recommended that for a height of 20 inches, a wheelchair
ramp be 19 feet long. What is the value of x to the nearest
tenth?
Slide 18
To secure an outdoor canopy, a 64- inch cord is extended from
the top of a vertical pole to the ground. If the cord makes a 60
angle with the ground, how tall is the pole?
Slide 19
12
Slide 20
23 Some mountains in the Alps are very steep and have a grade
of 42.9%. To the nearest degree, what angle do these mountains make
with a horizontal line?