7th Grade Forward Prep

Front

What is the formula for the circumference of a circle?

Back

Circumference = 2πr, where r is the radius of the circle.

Front

What is the value of π (pi) approximately?

Back

π is approximately 3.14.

Front

How do you calculate the circumference of a circle with a radius of 5 cm?

Back

Circumference = 2π(5) = 31.4 cm.

Front

What is the formula for the area of a circle?

Back

Area = πr², where r is the radius of the circle.

Front

How do you calculate the area of a circle with a radius of 7 cm?

Back

Area = π(7)² = 153.94 cm².

Front

What does it mean to increase a variable by a number?

Back

To increase a variable w by 5 means to add 5 to w, resulting in w + 5.

Front

What is the probability of a single event occurring?

Back

Probability = (Number of favorable outcomes) / (Total number of outcomes).

Front

What is the probability of tossing a coin and getting tails?

Back

The probability of getting tails is 1/2.

Front

What is the probability of rolling a 3 on a number cube (1-6)?

Back

The probability of rolling a 3 is 1/6.

Front

What is the combined probability of two independent events occurring?

Back

Combined probability = (Probability of event A) × (Probability of event B).