Passage:
The adjoining figure is showing '3' stairs if L = 85 cm, B = 45 cm and H = 30 cm.
Based on this information choose the correct option for the question.
The perimeter of bottom is
Answer & explanation
Correct answer: option 4
Here we can see that in the bottom we have two lengths and six breadths.
Therefore,
Perimeter of bottom = 2L + (3×2)B = (2 × 85) + (6 × 45) = 170 + 270 = 440