Class 10 Maths MCQs Chapter 10 Circles

MCQ Class 10 Maths Chapter 10 Circle
দশম শ্ৰেণীৰ গণিত অধ্যায় 10 বৃত্ত

Important MCQ Class 10 Maths Chapter 10 Circles
Question 1: A straight line which intersects a circle in two points is called-
এডাল সৰল ৰেখাই এটা বৃত্তক দুটা বিন্দুত ছেদ কৰিলে ৰেখাডাল হ'ব-

Answer: The correct answer is D) secant

Explanation:

Question 2: If TP and TQ are two tangents to a circle with centre O so that ∠POQ=110° then ∠PTQ is equal to
যদি কেন্দ্ৰ যুক্ত এটা বৃত্তৰ TP আৰু TQ দুডাল স্পৰ্শক, যাতে ∠POQ=110° তেন্তে ∠PTQ সমান হ'ব-

Answer: The correct answer is B) 70°

Explanation: Since, ∠POQ+∠PTQ=180°
⇒ ∠PTQ=180° - ∠POQ ⇒ ∠PTQ=180° - 110° = 70°

Question 3: What is the distance between two parallel tangents drawn on a circle of radius 4 cm?
4 ছে.মি. ব্যাসাৰ্ধৰ বৃত্তত অঁকা সমান্তৰাল স্পৰ্শক দুডালৰ মাজৰ দূৰত্ব কিমান?

Answer: The correct answer is C) 8 cm

Explanation: Since, the two parrallel tangents should be on the both end points of the diameter(d). Hence, distance between them be d = 2r = 2×4 = 8 cm

Question 4: The length of a tangent from a point A at distance 5 cm from the centre of the circle is 4 cm. The radius of the circle is
বৃত্তৰ কেন্দ্ৰৰ পৰা 5 ছে.মি. দূৰত্বত থকা এটা বিন্দু A ৰ পৰা স্পৰ্শক এডালৰ দৈৰ্ঘ 4 ছে.মি.। বৃত্তটোৰ ব্যাসাৰ্ধ হ'ল-

Answer: The correct answer is A) 3 cm

Explanation: By using Pythagoras Theorem we get, r = √(5² - 4²) = √(25 - 16) = √9 = 3 cm

Question 5: If the tangents PA and PB from a point P to a circle with centre O are inclined to each other at an angle of 80°, then ∠POA is equal to
যদি এটা বিন্দু P ৰ পৰা O কেন্দ্ৰযুক্ত এটা বৃত্তৰ PA আৰু PB স্পৰ্শক দুডালে পৰস্পৰ 80° কোণ কৰে, তেন্তে ∠POA সমান হ'ব-

Answer: The correct answer is A) 50°

Explanation: ∠AOB = 180° - ∠APB = 180° - 80° = 100°
Again, ∠POA = 1/2 (∠AOB) = 1/2 . 100° = 50°

Question 6: A circle can have ___ parralel tangent(s) at the most.
এটা বৃত্তৰ বৰ বেছি ___ ডাল সমান্তৰাল স্পৰ্শক থাকিব পাৰে।

Answer: The correct answer is B) 2

Explanation: A circle can have two parallel tangents at the most.

Question 7: The number of tangent(s) of a Circle is.
এটা বৃত্তৰ স্পৰ্শকৰ সংখ্যা হ'ল-

Answer: The correct answer is D) Infinite অসংখ্য

Explanation: A circle has infinite number of tangents.

Question 8: A tangent intersects the circle at
স্পৰ্শক এডালে বৃত্তটোক ছেদ কৰে-

Answer: The correct answer is A) One point এটা বিন্দুত

Explanation: A tangent intersects the circle at one point.

Question 9: If a parallelogram circumscribes a circle, then it is a
যদি সামান্তৰিক এটাই বৃত্ত এটাক পৰিসীমাবদ্ধ কৰে, তেন্তে ই এটা

Answer: The correct answer is B) Rhombus ৰম্বাছ

Explanation: If a parallelogram circumscribes a circle, then it is a Rhombus.

Question 10: Two concentric circles are of radii 5 cm and 3 cm. The length of the chord of the larger circle which touches the smaller circle is
দুটা ঐককেন্দ্ৰিক বৃত্তৰ ব্যাসাৰ্ধ 5 ছে.মি. আৰু 3 ছে.মি.। সৰু বৃত্তটোক স্পৰ্শ কৰা ডাঙৰ বৃত্তটোৰ জ্যাডালৰ দৈৰ্ঘ হ'ল-

Answer: The correct answer is A) 8 cm

Explanation: By using pythagoras theorem we can get the length of the chord which is 8 cm.



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