Question : The height of an equilateral triangle is $7 \sqrt{3}$ cm. What is the area of this equilateral triangle?

Option 1: $36 \sqrt{3}$ cm²

Option 2: $25 \sqrt{3}$ cm²

Option 3: $49 \sqrt{3}$ cm²

Option 4: $32 \sqrt{3}$ cm²

Question : The base of a solid right prism of height 10 cm is a square and its volume is 160 cm³. What is the total surface area of the prism (in cm²)?

Option 1: 200

Option 2: 176

Option 3: 192

Option 4: 180

Question : The base of a prism is a right-angled triangle with two sides 5 cm and 12 cm. The height of the prism is 10 cm. The total surface area of the prism is:

Option 1: 360 sq cm

Option 2: 300 sq cm

Option 3: 330 sq cm

Option 4: 325 sq cm

Question : A prism has a regular hexagonal base with a side of 6 cm. If the total surface area of the prism is 216$\sqrt3$ cm², then what is the height (in cm) of the prism?

Option 1: $3\sqrt3$

Option 2: $6\sqrt3$

Option 3: $6$

Option 4: $3$

Question : A pyramid has an equilateral triangle as its base, of which each side is 8 cm. Its slant edge is 24 cm. The whole surface area of the pyramid (in cm²) is:

Option 1: $(16 \sqrt{3}+24 \sqrt{35})$

Option 2: $(12 \sqrt{3}+24 \sqrt{35})$

Option 3: $(24\sqrt{3}+36\sqrt{35})$

Option 4: $(16\sqrt{3}+48\sqrt{35})$