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RIGHT TRIANGLES and THE PYTHAGOREAN THEOREM
SINE and COSINE
TANGENT
SIN, COS and TAN ANGLES
MISCELLANOUS
100
A triangle with one 90 degree angle.
What is a right triangle?
100
In a right triangle, the ratio of the length of the side opposite to angle A to the length of the hypothenuse.
What is sin A?
100
In a right triangle, the ratio of the length of the side opposite to angle A to the length of the side adjacent to angle A.
What is tangent ratio?
100
What do sin 30 degrees and cos 60 degrees equal to?
1/2.
100
An angle with less than 90 degrees measurement.
What is the acute angle?
200
In a right triangle, the sum of the squares of the lengths of the sides is equal to the square of the length of the hypotenuse. a2 + b2 = c2
What is the Pythagorean Theorem?
200
In a right triangle, the ratio of the length of the side adjacent to angle A to the length of the hypothenuse.
What is cosine ratio?
200
In a triangle ABC, if angle B=90 degrees, AB=3, BC=4 and AC=5, the angle represented by the trigonometric ratio is 4/3.
What is tan A?
200
What do sin 45 degrees and cos 45 degrees equal to?
square root of 2 over 2.
200
The angle between the horizontal through the eye level and a line of sight to a point above eye level.
What is the angle of elevation?
300
In a right triangle, if
The hypothenuse is 5 cm.
300
In a triangle ABC, if angle B=90 degrees, AB=3, BC=4 and AC=5, the angle represented by the trigonometric ratio is 4/5.
What is sin A?
300
If the tangent ratio of an angle is known, what can be determine by using the inverse operation of the tangent ratio on a scientific calculator?
The measure of the angle.
300
What do sin 60 degrees and cos 30 degrees equal to?
square root of 3 over 2.
300
The angle between the horizontal through the eye level and a line of sight to a point below eye level.
What is the angle of depression?
400
The side that is right across the 90 degree angle is called.
What is the hypothenuse?
400
In a triangle ABC, if B=90 degrees, AB=3, BC=4 and AC=5, the angle represented by the trigonometric ratio is 3/5.
What is cos A?
400
The definition of the tangent ratio can be use to solve this equation.
The side length.
400
What does tan 30 equal to?
1 over square root of 3.
400
The acute angle between the horizontal and a line or line segment.
What is the angle of inclination?
500
Polygons with the same shape; one polygon is an enlargement or a reduction of the other polygon.
What is similar polygons?
500
In a triangle ABC, if B=90 degrees, AB=3, BC=4 and AC=5, the angle represented by the trigonometric ratio is 3/5.
What is cos A?
500
What is the first step to solve a problem about any trigonometric ratios and the tangent ratio?
What is sketch the situation.
500
What does tan 60 equal to?
square root of 3.
500
A tool to used to measure an angle above or below the horizontal.
What is a clinometer?