A loop repeats the same commands. repeat 4 { forward 10 cm; turn right 90° } drives four equal sides with four right-angle turns — a square, and the robot drives 4 × 10 = 40 cm in all. For any regular shape with n sides, each turn is 360 ÷ n degrees: 120° for a triangle, 72° for a pentagon, 60° for a hexagon and 45° for an octagon. A loop inside a loop multiplies: repeat 3 { repeat 4 {…} } runs the inside 12 times.
Work it out in your head or on paper, then tap your answer — or type it and press Check. Stuck? Press “Show me how”.
Right: 0 · Tried: 0
🏁 Lesson 22 test
20 questions. Check each answer, then go to the next one. Get 16 or more right to pass.
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