Math 166 - Lesson 1.2 Trigonometric Functions

Question 1

What is the sum of the interior angles of a triangle?

Answer 1

180

Question 2

What is the measure of a right angle?

Answer 2

90

Question 3

What is the formula for Linear speed?

Answer 3

Linear speed = radius * angular speed

Question 4

What is the angular speed of a point moving on a circular path?

Answer 4

Angular speed is measured in radians per unit time

Question 5

What is the formula for the area of a circular sector?

Question 6

What branch of mathematics deals with the measurement of triangles?

Answer 6

Trigonometry

Question 7

What is an angle in standard position?

Question 8

What are two angles called if their sum is 90 degrees?

Question 9

What is the formula for the length of a circular arc?

Question 10

What is the measure of an angle in radians?

Question 11

T or F. A right angle measures 90 degrees.

Answer 11

True

Question 12

T or F. Trigonometry deals with the measurement of quadrilaterals.

Answer 12

False

Question 13

The measure of an angle in radians is the length of the arc subtended by the angle on a circle with a radius equal to 1.

Question 14

The length of a circular arc is calculated by multiplying the radius by the central angle in degrees.

Question 15

T or F. Angular speed is measured in degrees per unit time.

Question 16

T or F. The formula for the area of a circular sector is (1/2) times the square of the radius times the central angle in radians.

Question 17

T or F. Linear speed is calculated by multiplying the radius of a circle by the angular speed.

Question 18

T or F. An angle in standard position has its initial side on the negative x-axis.

Question 19

T or F. The sum of the interior angles of a triangle is always 180 degrees.

Question 20

T or F. Complementary angles are two angles whose sum is 180 degrees.