Geometry TNReady Flashcard 5 EOC

Front

What is the definition of probability?

Back

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1.

Front

How do you calculate the area of a sector in a circle?

Back

Area of a sector = (θ/360) * π * r², where θ is the central angle in degrees and r is the radius.

Front

What is the formula for the area of a circle?

Back

Area = π * r², where r is the radius of the circle.

Front

What does A ∩ B represent in set theory?

Back

A ∩ B represents the intersection of sets A and B, which includes all elements that are common to both sets.

Front

How do you find the area of a shaded sector given the radius and central angle?

Back

Use the formula: Area = (θ/360) * π * r², substituting the values for θ and r.

Front

What is the probability of an event?

Back

The probability of an event is calculated as the number of favorable outcomes divided by the total number of possible outcomes.

Front

What is the definition of a sector in a circle?

Back

A sector is a portion of a circle enclosed by two radii and the arc between them.

Front

How do you express a probability as a simplified fraction?

Back

To express a probability as a simplified fraction, divide the number of favorable outcomes by the total outcomes and simplify the fraction.

Front

What is the formula for the area of a triangle?

Back

Area = (1/2) * base * height.

Front

What is the central angle of a sector?

Back

The central angle is the angle formed at the center of the circle by two radii.