HW1.6

What is the other acute angle in a right triangle where one angle is 30°?

• 45°

• 60°

• 90°

• 30°

What is the value of the hypotenuse in a right triangle if the opposite side to a 30° angle is 3.0 units?

• 3.0 units

• 4.5 units

• 6.0 units

• 5.0 units

What is the length of the side adjacent to the 30° angle in a right triangle with a hypotenuse of 6.0 units?

• 5.2 units

• 4.5 units

• 3.0 units

• 4.0 units

Which trigonometric function is used to calculate the hypotenuse given the opposite side and an angle?

• Sine

• Cosine

• Tangent

• Secant

According to the Pythagorean theorem, what is the relation between the sides of a right triangle?

• 𝑐²=a²+b²

• c=a+b

• a²+b²=c

• c²=a+b

If the hypotenuse of a right triangle is 5 cm and one angle is 53°, what is the length of the side opposite to the 37° angle?

• 3.0 cm

• 4.0 cm

• 4.5 cm

• 5.0 cm

Which type of triangle is defined as having one 90° angle?

• Acute triangle

• Obtuse triangle

• Right triangle

• Isosceles triangle

What is the sum of the angles in any triangle?

• 180°

• 90°

• 270°

• 360°

What is the value of sin(30°)?

• 1.0

• 0.5

• 0.866

• 0.0

What trigonometric function is used to determine the adjacent side when the hypotenuse is known?

• Sine

• Cosine

• Tangent

• Secant