Question : If a map of a city was drawn on a scale of 0.2 cm to a km, what area would represent a country if it has an area of 22500 km² $

Option 1: 2500 km²

Option 2: 2250 km²

Option 3: 5625 km²

Option 4: 900 km²

Question : The total surface area of a right circular cylinder with a radius of the base 7 cm and height 20 cm, is:

Option 1: 900 cm²

Option 2: 140 cm²

Option 3: 1000 cm²

Option 4: 1188 cm²

Question : A hemispherical bowl has an internal radius of 6 cm. The internal surface area would be: (Take $\pi =3.14$)

Option 1: 225 cm²

Option 2: 400 cm²

Option 3: 289.75 cm²

Option 4: 226.08 cm²

Question : If the volume of a cube is 729 cm³, then find the total surface area of the cube.

Option 1: 484 cm²

Option 2: 482 cm²

Option 3: 488 cm²

Option 4: 486 cm²

Question : The difference between the total surface area and the lateral surface area of a cube of side 12 cm is:

Option 1: 292 cm²

Option 2: 290 cm²

Option 3: 288 cm²

Option 4: 286 cm²

Question : A right pyramid stands on a square base of diagonal $10\sqrt2$ cm. If the height of the pyramid is 12 cm, the area (in cm²) of its slant surface is:

Option 1: 520 cm²

Option 2: 420 cm²

Option 3: 360 cm²

Option 4: 260 cm²