3.3.1 Drawing Rectangles and Using Colors in Programming

What function is used to convert RGB values into a usable color in cmu_graphics?

• rgb

• color

• fill

• draw

Fill in the blank: To set the border color of a rectangle, you use the parameter ____.

• border

• fill

• color

• width

Which of the following is NOT an optional argument in the drawRect function?

• A) border

• B) rotateAngle

• C) top

• D) opacity

Which of the following colors is used in the example to fill a rectangle using the rgb function?

• Pistachio

• Cyan

• Black

• Blue

What is the purpose of the 'borderWidth' parameter in the drawRect function?

• To change the color of the rectangle

• To change the width of the rectangle's border

• To change the height of the rectangle

• To change the fill color of the rectangle.

Fill in the blank: An opacity of 0 means the shape is completely ______.

• A) visible

• B) transparent

• C) opaque

• D) colored

In the example code, what is the rotateAngle set to for the green rectangle?

• 0

• 10

• 30

• 45

Which function is used to start the application in the provided code?

• startApp()

• runApp()

• beginApp()

• executeApp()

What does the Inspector tool show for rotated shapes?

• The top-left point

• The bottom-right point

• The center point

• The color of the shape.

In the code example, what color is the rectangle with rotateAngle=10?

• Red

• Orange

• Yellow

• Green