CMU CS Academy Intro

What is the width of the entire canvas?

• 100 pixels

• 200 pixels

• 400 pixels

• 1000 pixels

Where is (0, 0) located on the canvas?

• top left corner

• top right corner

• bottom left corner

• bottom right corner

Which line of code would draw a rectangle without any errors?

• rect(100, 200, 50, 50)

• Rect(100, 200, 50)

• Rect(100, 200, 50, 50)

• Rect(100 200 50 50)

What do the first two numbers in Rect(50, 100, 75, 150) mean?

• width

• height

• top left corner location

• center location

What does the 75 in

Rect(50, 100, 75, 150)

mean?

• width

• height

• top left corner location

• bottom right corner location

Which of these Rect shapes has the largest height?

• Rect(200, 200, 100, 250)

• Rect(300, 300, 40, 40)

• Rect(100, 75, 300, 50)

• Rect(350, 275, 75, 175)

Which one of these Rect shapes covers the entire canvas?

• Rect(0, 0, 0 ,0)

• Rect(0, 0, 400, 400)

• Rect(400, 400, 400, 400)

• Rect(400, 400, 0 ,0)

Which of these would be further to the LEFT than the Rect shown in the picture?

• Rect(250, 100, 50, 50)

• Rect(200, 300, 50, 50)

• Rect(100, 200, 25, 40)

• Rect(300, 25, 80, 100)

What is a canvas?

• A box .

• A rectangle that you draw.

• The canvas is made up of tiny colored points, or pixels. We use (x,y) coordinates to talk about pixels on the canvas.

• A quadrant.

Which algorithm is used to draw a rectangle?

• Rect(10, 20, 30, 40)

• rect(10, 20, 30, 40)

• Rect(10 20 30 40)

• rect(10, 20, 30, 40)