Mathematics
Assertion (A): Rhombus becomes square if its diagonals are equal. Reason (R): OB = OD = 1/2 x BD and OC = OA = 1/2 x AC ⇒ OB = OA = OC OB = OC ⇒ ∠a = ∠b = 45° Similarly, ∠c = ∠d = 45° ∠ABC = ∠b + ∠c = 45° + 45° = 90° 1. A is true, R is false. 2. A is false, R is true. 3. Both A and R are true. 4. Both A and R are false.
Related Questions
Assertion (A): In the given figure, if the area of the parallelogram ABEF is 120 cm2, then area of rectangle ABCD is 120 cm2.
Reason (R): Parallelogram and rectangle on the same base and between the same parallels are equal in area.
- A is true, R is false.
- A is false, R is true.
- Both A and R are true.
- Both A and R are false.