Introduction to Euclid Geometry
17 solved questions from Class 9 Mathematics, each with the full working. Tap any question to see the step-by-step solution.
- 1 What is the sum of all interior angles of a triangle? medium MCQ Angle Sum Property
- 2 What is the sum of interior angles of a quadrilateral? medium MCQ Polygon Angles
- 3 In a right triangle with legs 3 cm and 4 cm, find hypotenuse length. medium MCQ Pythagoras Theorem
- 4 How many tangents can be drawn to a circle from an external point? medium MCQ Tangents to Circle
- 5 What is the angle between a tangent and the radius at the point of contact? medium MCQ Tangent Properties
- 6 Two triangles are similar if their corresponding sides are in ____. medium MCQ Similar Triangles
- 7 Find the perimeter of a square with side length 6 cm. medium MCQ Perimeter of Square
- 8 What is the formula for area of a circle with radius r? medium MCQ Area of Circle
- 9 If diameter of a circle is 14 cm, what is its radius? medium MCQ Circle Definitions
- 10 State Pythagoras Theorem for a right-angled triangle. medium MCQ Pythagoras Theorem
- 11 What is the domain, range, or fundamental theorem introduced in 'Introduction to Euclid Geometry' (Class 9 Mathematics)? medium MCQ Functions & Theorems
- 12 What is the derivative or integral formula associated with 'Introduction to Euclid Geometry'? medium MCQ Calculus & Formulae
- 13 How do you find the solution set or optimum value in 'Introduction to Euclid Geometry'? medium MCQ Problem Solving & Optimization
- 14 Find the area of a circle whose radius is 12 cm. medium 2 marks Area of circle
- 15 In a right triangle ABC, AB=9 cm, BC=12 cm and AC is the hypotenuse. A circle is inscribed in this triangle. Find the radius of the circle. hard 3 marks Inradius of right triangle
- 16 What is the radius of a circle whose diameter is 18 cm? easy MCQ 1 mark Circle radius
- 17 In a right‑angled triangle, the lengths of the two legs are 7 cm and 24 cm. Find the length of the hypotenuse. medium 2 marks Pythagoras theorem