Passage:
The adjoining figure shows 3 stairs, where L = 85 cm, B = 45 cm and H = 30 cm.
Based on this information choose the correct option for the question.
Which of the following shows the area of the side view?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 8100 cm2
Seen from the side, the stairs form a staircase shape: the front column is one step high, the middle column two steps and the back column three steps. So the side view is made of 1 + 2 + 3 = 6 equal blocks, each B wide and H high.
Area of one block \(=B\times H=45\times30=1350\) cm2
Area of the side view \(=6\times1350=8100\) cm2