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A prism has as the base a right angled triangle whose sides adjacent to the right angles are 10 cm and 12 cm long. The height of the prism is 20 cm. The density of the material of the prism is 6 gm/cubic cm. The weight of the prism is
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- 6.4 kg
- 7.2 kg
- 3.4 kg
- 4.8 kg
- 6.4 kg
Correct Option: B
| Area of the base of prism = | × 10 × 12 = 60 sq. cm. | |
| 2 |
∴ Volume of prism = Area of the base × height = 60 × 20 =1200 cu.cm
∴ Mass of prism = Volume × density = (1200 × 6) gm
| = |  |  | kg. = 7.2 kg. | |
| 1000 |
