Pythagorean Theorem
≅ Right Triangles
Cofunctions
~ Right Triangles
Trigonometry
Angles of Elevation
100
In the right triangle below, the length of
bar CbarD
What is 8 ft.?
100
The theorem/postulate that proves these two triangles congruent.
What is Angle-Side-Angle?
100
The expression sin57° is equal to
What is the cos 33° ?
100
The length of the altitude of the given triangle.
What is
5sqrt(6)
or approx. 12.3?
100
The ratio that represents the sine of ∠U.
What is
sin U = 15 /17?
100
Find the angle of elevation of the sun when a tree that is 10 yd tall casts a shadow 14 yd long.
What is 35.6 degrees?
200
In the right triangle below, the value of x in simplest radical form or rounded to the nearest tenth.
8sqrt(3)
13.9
200
The theorem/postulate that proves these two triangles congruent.
What is Hypotenuse-Leg Theorem?
200
In ABC below, angle C is a right angle. What is true about the triangle.
What is sinA = cosB?
200
Triangles similar to Triangle GTH in the figure.
What is Triangle TRH and Triangle GRT?
200
The value of the tangent of ∠B. 
What is
tanB = 8 /15 = 0.53
200
A tree 28 meters tall casts a shadow 32 meters long, find the angle of elevation of the Sun to the nearest degree.
What is 41 degrees?
300
Whether the below triangle is or is not a right triangle.
What is yes?
300
What is Def. of Perpendicular Bisector and then Hypotenuse-Leg Theorem?
300
The expression that is always equivalent to sinx when 0° < x < 90°?
What is cos(90° − x)?
300
The value of k in the given figure.
What is 43.2?
300
The height of the palm tree rounded to the nearest foot.
What is 13 ft.?
300
A spotlight is mounted on a wall 7.4 ft above a security desk in an office building. It is used to light an entrance door 9.3 ft from the desk. Find the angle of depression from the spotlight to the entrance door.
What is 38.5 degrees?
400
The set of numbers does not represent the sides of a right triangle.
1) {6,8,10}
2) {8,15,17}
3) {8,24,25}
4) {15,36,39}
What is number 3?
400
What is the conruency theorem that proves congruency for these triangles.
∠Q ≅ ∠M, ∠P ≅ ∠N, QP ≅ MN
What is ASA?
400
In right triangle ABC, m∠C = 90°. If cosB = 5/13, which function also equals 5/13?
What is sinA?
400
FREE Points!
400
To the nearest tenth, the length of the hypotenuse of triangle ABC.
What is 116.5 in.?
400
To the nearest whole degree, the angle of elevation from S to the top of the Eiffel Tower.
What is 67 degrees?
500
The length of one side of a square is 13 feet. Find the length, to the nearest foot, of a diagonal of the square.
What is 18?
500
The value of m that would make these two triangles congruent.
What is m=3?
500
If sin(2x + 7)° = cos(4x − 7)°, what is the value of x?
What is x = 15?
500
The distance from the parking lot to the clearing rounded to the tenth.
What is approx. 420.8?
500
The measure of angle x?
What is
x ≈ 27.8
500
A man who is 5 feet 9 inches tall casts a shadow of 8 feet 6 inches. The man is standing perpendicular to the ground. Find the angle of elevation from the end of the shadow to the top of the man’s head, to the nearest tenth of a degree.
Hint: 12 inches = 1 foot
What is
x ≈ 34.1