Question : What is the area of a triangular flower bed of a garden whose perimeter is 20 m and two sides are 5 m and 6 m?

Option 1: $10 \sqrt{2}$ m²

Option 2: $2 \sqrt{10}$ m²

Option 3: $5 \sqrt{2}$ m²

Option 4: $4 \sqrt{5}$ m²

Question : The length, breadth, and height of a cuboid are in the ratio 3 : 4 : 6 and its volume is 576 cm³. The whole surface of the cuboid is:

Option 1: 216 cm²

Option 2: 324 cm²

Option 3: 432 cm²

Option 4: 460 cm²

Question : If the volume of a cube is 1728 cm³, then what is the total surface area of the cube?

Option 1: 804 cm²

Option 2: 729 cm²

Option 3: 864 cm²

Option 4: 926 cm²

Question : A rectangular carpet has an area of 120 m² and a perimeter of 46 m. The length of its diagonal is:

Option 1: 23 m

Option 2: 13 m

Option 3: 17 m

Option 4: 21 m

Question : The sum of the radius of the base and the height of a cylinder is 42 m. If the total surface area of the cylinder is 6336 m², find the curved surface area of the cylinder correct to two places of decimals (use $\pi=\frac{22}{7}$).

Option 1: 2157.43 m²

Option 2: 2571.43 m²

Option 3: 2715.43 m²

Option 4: 2517.43 m²