Right Triangle Trigonometry Concepts

What is the longest side of a right triangle called?

• Base Side
• Adjacent Side
• Opposite Side
• Hypotenuse

Which of the following statements about the hypotenuse is true?

• It is the side adjacent to the angle.
• It is the side opposite the adjacent side.
• It is the shortest side of the triangle.
• It is always opposite the right angle.

What is the opposite side in a right triangle?

• The side opposite the angle we are looking at
• The longest side of the triangle
• The side adjacent to the angle
• The side opposite the right angle

If the opposite side of a right triangle is 5 units and the hypotenuse is 13 units, what is the sine of the angle?

• 0.65
• 0.39
• 0.5
• 0.38

In a right triangle, if the adjacent side is 7 units and the hypotenuse is 25 units, what is the cosine of the angle?

• 0.8
• 0.56
• 0.7
• 0.28

What is the tangent of an angle if the opposite side is 9 units and the adjacent side is 12 units?

• 0.9
• 1.5
• 0.75
• 1.33

How does raising a ladder change the angles in the triangle formed?

• It does not change the angles
• It increases the height and decreases the distance from the wall
• It decreases the height and increases the distance from the wall
• It makes the ladder shorter

If a ladder is leaning against a wall, which part of the triangle does the ladder represent?

• Opposite side
• Adjacent side
• Hypotenuse
• None of the above

If a ladder is leaning against a wall, which side represents the hypotenuse?

• The height of the ladder on the wall
• The ground
• The ladder
• The wall

Which of the following statements about sine, cosine, and tangent is true?

• Cosine is the ratio of hypotenuse to opposite.
• Tangent is the ratio of opposite to adjacent.
• Cosine is the ratio of opposite to adjacent.
• Sine is the ratio of adjacent to hypotenuse.