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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
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- 360 sq cm
- 300 sq cm
- 330 sq cm
- 325 sq cm
- 360 sq cm
Correct Option: C
Hypotenuse of base = √5² + 12²
= √25 + 144 = √169 = 13 cm
∴ Surface area = h (a+ b + c)
= 10 (5 + 12 + 13) = 300 sq.cm.
| Area of base = | × 5 × 12 | |
| 2 |
= 30 sq.cm.
∴ Total surface area of lateral surfaces = 300 + 30 = 330 sq.cm.
