The 3D figure shows the view of an object. Identify the correct view looking in the direction of arrow, amongst the answer figures.
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The left ends of all tiers are in line. Compare the lengths of the four tiers from bottom to top: full, about three quarters, three quarters, and about 0.6.
The arrow looks at the long left face of the staircase-like object, so we draw the elevation seen from there. The object has four tiers. All four start at the same left edge. Measuring their lengths along the viewing face: the bottom tier is the longest (1), the second tier is about 0.75 of it, the third tier is also about 0.75 (it ends in line with the second), and the top block is about 0.6. So the elevation is four stacked rows, left-aligned: bottom row longest, then two rows of equal length, and a shorter top row. Option (3) makes the bottom two rows equal, option (4) makes every tier a different length and shows a spurious line, and option (2) merges the top rows into one block. Only option (1) has the lengths 1, 0.75, 0.75, 0.6. Answer: (1) the first answer figure
