AMC 8 Mock Alpha 1.1

Front

What is the formula for the area of a circle?

Back

The area of a circle is given by the formula A = πr², where r is the radius of the circle.

Front

What is the relationship between the side length of a square and its area?

Back

The area of a square is given by the formula A = s², where s is the length of a side.

Front

How do you determine if a number is divisible by 5?

Back

A number is divisible by 5 if its last digit is either 0 or 5.

Front

What are even digits?

Back

Even digits are 0, 2, 4, 6, and 8.

Front

What is a prime number?

Back

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

Front

What is the largest divisor of a number?

Back

The largest divisor of a number is the highest number that divides it without leaving a remainder.

Front

How do you calculate the number of steps taken when walking down an escalator?

Back

To calculate the number of steps taken, consider the speed of walking and the speed of the escalator.

Front

What is the significance of counting steps on a moving escalator?

Back

Counting steps on a moving escalator helps determine the relative speed of walking versus the escalator's movement.

Front

Back

The value is 5.

Front

Back

The value is 4.