The length and width of a rectangular room are measured to be `3.95pm0.05` m and `3.05pm0.05` m, respectively, the area of the floor is

The length and width of a rectangular plate are (16.30+-0.05) and (13.80+-0.05) cm respectively. Calculate the area of the plate and also find the uncertainty in the area.

The length breadth and thickness of a rectangular strip of metal are 3.335 m,1.025 m and 3.05 cm respectively. Find the area and volume of the strip to correct significant figures.

The length and breadth of a rectangular room are 15 m and 8 m respectively: (a) Find the perimeter of room. (b) Find the area of the floor of room. (c) Find the maximum possible length of the rod that can be put on the floor.

The length and breadth of a plate are (6 pm 0.1) cm and (4 pm 0.2)cm respectively. The area of the plate is

The length and breadth of a rectangle are lm and 0.5 m, respectively, find the value of it’s perimeter. Is perimeter a Scalar or vector?

In the density measurement of a cube, the mass and edge length are measured as (10.00 pm 0.10) kg and (0.10 pm 0.01)m , respectively. The relative error in the measurement of density is: