Geometric Formula

What's the formula to find the circumference of a circle?

How do you find the area of a parallelogram?

What is the perimeter of the parallelogram?

• P = 124cm

• P = 100cm

• P = 164cm

• P = 132cm

How do you find the perimeter of a rectangle?

• P = 2L + 2w

• P = L + w

• P = 2L × 2w

• P = L × w

Draw a circle with a circumference of 25.12. Label the radius.

How do you find the area of a square?

Write the explicit formula for the geometric sequence.

• a_n = 10(2)^n-1

• a_n = 2(10)^n-1

• a_n = 10(2)ⁿ

• a_n = 2(10)ⁿ

Write the explicit formula for the geometric sequence.

• a_n = 4(3)^n-1

• a_n = 3(4)^n-1

• a_n = -4(3)^n-1

• a_n = 3(-4)^n-1

Write the explicit formula for the geometric sequence.

• a_n = 2(100)^n-1

• a_n = 100(2)^n-1

• a_n = 100(1/2)^n-1

• a_n = (1/2)(100)^n-1

Write the explicit formula for the following geometric sequence: 3, -12, 48, -192, ...

• a_n = 4(3)^n-1

• a_n = 3(4)^n-1

• a_n = -4(3)^n-1

• a_n = 3(-4)^n-1