Quest4Learn

CBSE Class 10 Maths (Standard) 2025 · Paper 30(B)/S · Question 19

Surface Areas and Volumes 1 mark Easy
Read the assertion and reason and choose the correct option.

Assertion (A): The curved surface area of a right circular cone of radius cm and slant height cm is sq cm.

Reason (R): The curved surface area of a right circular cone of radius and slant height is .

  1. (a)Both A and R are true and R is the correct explanation of A.
  2. (b)Both A and R are true but R is not the correct explanation of A.
  3. (c)A is true but R is false.
  4. (d)A is false but R is true.

Answer

(a) Both A and R are true and R is the correct explanation of A.

🔒 Step-by-step solution

Sign up free to see every step of how it is worked out.

From the board paper

More questions from Surface Areas and Volumes

Class 10 Maths — every question with an expert-verified, step-by-step solution.

All 393 questions on Surface Areas and Volumes → Browse all Maths chapters →