Mathematics
Assertion (A) : The diagonal of a square 9√2 cm. Its area = 81 cm^2. Reason (R) : The area of a square = 1/2 x d^2, where d is the length of the diagonal 1. Both A and R are correct, and R is the correct explanation for A. 2. Both A and R are correct, and R is not the correct explanation for A. 3. A is true, but R is false. 4. A is false, but R is true.
Related Questions
Assertion (A) : The diagonal of a rectangle is 17 m and its breadth is 8 m. Half of the area of rectangle is 120 m2.
Reason (R) : The diagonal of every rectangle, divide into two congruent right-triangles.
Both A and R are correct, and R is the correct explanation for A.
Both A and R are correct, and R is not the correct explanation for A.
A is true, but R is false.
A is false, but R is true.
The perimeter of a trapezium is 52 cm. If its non-parallel sides are 10 cm each and its altitude is 8 cm, find the area of the trapezium.