Podcast
Questions and Answers
Which trigonometric ratio is equal to the cotangent of an angle in a right-angled triangle?
Which trigonometric ratio is equal to the cotangent of an angle in a right-angled triangle?
What is the sum of the interior angles of a 12-sided polygon?
What is the sum of the interior angles of a 12-sided polygon?
If a circle has a radius of 10 cm, what is its circumference?
If a circle has a radius of 10 cm, what is its circumference?
Which transformation does not change the size or shape of a figure?
Which transformation does not change the size or shape of a figure?
Signup and view all the answers
Study Notes
Trigonometry
- The trigonometric ratio that is equal to the cotangent of an angle in a right-angled triangle is the tangent.
Polygon Angles
- The sum of the interior angles of a 12-sided polygon is 180(n-2) degrees, where n is the number of sides, so it is 180(12-2) = 1800 degrees.
Circumference of a Circle
- If a circle has a radius of 10 cm, its circumference is 2πr, so it is 2π(10) = 20π cm.
Transformations
- The transformation that does not change the size or shape of a figure is a rotation.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge of trigonometric ratios, polygon angles, circle properties, and geometric transformations with this Class 12 Maths NCERT quiz.
