Desmos Unit 1 - 4 Review

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 circumference of a circle?

Back

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

Front

What is a proportional relationship?

Back

A proportional relationship is one where two quantities maintain a constant ratio.

Front

How do you convert feet to inches?

Back

Multiply the number of feet by 12, since there are 12 inches in a foot.

Front

What is the scale in a scale drawing?

Back

The scale is the ratio of the drawing's dimensions to the actual dimensions.

Front

If a scale is 1 cm to 6 m, how do you find the actual height from a drawing?

Back

Multiply the height in cm by 6 to get the actual height in meters.

Front

What is the area of a rectangle?

Back

Area = length × width.

Front

How do you find the dimensions of a sketch using a scale?

Back

Use the scale to convert actual dimensions into the sketch dimensions.

Front

What is the relationship between area and circumference in circles?

Back

The area is related to the square of the radius, while the circumference is linear with the radius.

Front

How do you determine the length in a scale drawing if the width is known?

Back

Use the same scale ratio to find the length based on the actual dimensions.