CBSE Class 10 Maths (Basic) 2025 · Paper 430/5/1 · Question 19
Read the assertion and reason and choose the correct option.
Assertion (A): When a hemisphere of same radius () is carved out from one side of a solid wooden cylinder, the total surface area of remaining solid is increased by .
Reason (R): Curved surface area of hemisphere is .
- (a)Both A and R are true and R is the correct explanation of A.
- (b)Both A and R are true but R is not the correct explanation of A.
- (c)A is true but R is false.
- (d)A is false but R is true.
Answer
(d) A is false but R is true.
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