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A point (x, y) is x across and y up. The distance between two points is the long side of a right triangle whose short sides are the differences in x and in y. Olympiad questions often use Pythagorean triples like 3, 4, 5 and 5, 12, 13 so the answer is a whole number.
✓ You passed this topic’s test.
Across, up, Pythagoras — “the gap in x and the gap in y are the two short sides of a right triangle”
Use it for: Graph, map and coordinate geometry questions in Class 8–10 Olympiad papers.
Check: 6, 8, 10 is the 3, 4, 5 triangle doubled, and 10 × 10 = 100 ✓
Work it out in your head or on paper, type the answer and press Check. Stuck? Press “Show me how”.
Right: 0 · Tried: 0
20 questions. Check each answer, then go to the next one. Get 16 or more right to pass.
🏅 Sign in with Google to earn the 📍 Grid Navigator badge when you pass — and a certificate when you finish all 13 topics of Part 4 · Class 5–10 problem solving. You can still take the test without signing in.
Why does it work? When should you use it? Ask in English, मराठी or हिंदी.
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