Circles

This is an original revision companion, not a replacement for the NCERT textbook or your board syllabus.

Focus for this chapter

Connect a tangent with the radius at the point of contact and use equal tangent lengths carefully.

Common mistake to avoid

A tangent touches the circle at one point; do not treat it as a chord.

Use it in 10 minutes

1. Read the matching section in the official NCERT book ↗.
2. Write three terms, rules, or formulae you need to recall without looking.
3. Use a short practice quiz or write three questions you still cannot answer.
4. Record the score in My Practice ↗, then continue tomorrow.

Choose your Hindi practice quiz

• यूपी बोर्ड कक्षा 10 वृत्त क्विज़ ↗
• बिहार बोर्ड कक्षा 10 वृत्त क्विज़ ↗
• एमपी बोर्ड कक्षा 10 वृत्त क्विज़ ↗
• राजस्थान बोर्ड कक्षा 10 वृत्त क्विज़ ↗
• हरियाणा बोर्ड कक्षा 10 वृत्त क्विज़ ↗

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Next: Areas Related to Circles →