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The image shows two sets of diagrams comparing cutting tools from two different periods: Tool A (1.4 million years ago) and Tool B (0.8 million years ago). Tool A's front view, side view, and back view depict a primitive shape with rough edges at a scale of 5 cm. Tool B's corresponding views show a more refined, symmetrical, and sharp-edged design, also scaled at 5 cm. Both diagrams each present three perspectives: front view, side view, and back view.
Given the complexity of the image, the above description may not be entirely accurate.
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The diagram illustrates how the cutting tools was developed in the Stone Age. There are two different tools A and B, each with three views front, side and back.
Tool A was developed earlier than tool B with 0.6 milion years difference. Each of them were made in different type of stones. Both had the same hieght of around 10 cm, but were different in width.
For Tool A, the tip is not sharp from all sides. However, it sounds to have a high strength. While tool B had a sharp top edge from side view. Its material sounds to be brittle.
A’s design had that pyramid shape and on the other hand, B has a tight top then large width in the middle, then a smaller width at the bottom and this is shown from all side views.
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