1.D, E and E are respectively the mid-points of sides AB, BC and CA of ABC find the
ratio of the areas of DEF and ABC.
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Waves are characterized by their repetitive motion. Imagine a toy boat riding the waves in a wave pool. As the water wave passes under the boat, it moves up and down in a regular and repeated fashion. While the wave travels horizontally, the boat only travels vertically up and down. The Figure below shows two examples of waves.
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Check your answer please
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