7th REVIEW Unit 4 Area of Quads and Circles

Front

What is the formula for the circumference of a circle?

Back

C = πd or C = 2πr, where d is the diameter and r is the radius.

Front

How do you calculate the area of a parallelogram?

Back

Area = base × height.

Front

What is the relationship between the diameter and circumference of a circle?

Back

The circumference is directly proportional to the diameter, expressed as C = πd.

Front

What is the formula for the area of a circle?

Back

Area = πr², where r is the radius.

Front

How do you find the circumference of a circle given its radius?

Back

Use the formula C = 2πr.

Front

What is a regular hexagon?

Back

A regular hexagon is a six-sided polygon with all sides and angles equal.

Front

How do you calculate the area of a regular hexagon?

Back

Area = (3√3/2) × s², where s is the length of a side.

Front

What is the value of π (pi) approximately?

Back

π is approximately 3.14.

Front

How do you find the area of a circle given its diameter?

Back

First, find the radius (r = d/2), then use Area = πr².

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 × base × height.