2ND QUARTER SUMMATIVE TEST

A method of representation of the sum of a finite sequence of numbers

• Sigma Notation

• Addition

• Sequence

• Series

What defines a positive angle in standard position?

• Rotates clockwise

• Rotates counterclockwise

• Lies on the negative x-axis

• Rotates with no direction

What unit can be used to measure angles besides degrees?

• Hours

• Radians

• Centimeters

• Grams

What is the standard position of an angle?

• a) When the terminal side lies on the y-axis

• When the vertex is at the origin and one side lies along the positive x-axis

• When it rotates clockwise

• When it measures less than 90 degrees

How many radians are in a full circle?

• π radians

• 2π radians

• 360 radians

• 180 radians

What is a coterminal angle?

• An angle that shares the same terminal side but has a different initial side

• An angle measured in minutes and seconds

• An angle that shares the same terminal side but differs by multiples of 360° or 2π radians

• An angle used to measure arc length

How do you convert degrees to radians?

• Multiply by π/180

• Multiply by 180/π

• Add 360

• Subtract 180

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

• 90°

• 180°

What is the relationship between linear and angular measures in a unit circle?

• Linear measure equals angular measure times the radius

• Angular measure equals linear measure divided by radius

• They are inversely proportional

• Both a and b

• all of the answers