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By: t0618, Views: 1406

相似三角形triangle-三邊成比例

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By: t0618, Views: 919

等腰三角形triangle-等腰三角形底角

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By: t0618, Views: 1910

等腰三角形triangle-等角對邊相等

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By: t1110, Views: 991

Differences in intervals, limits, boundaries, width and marks

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By: t1110, Views: 1198

Application of ext. angle of triangle in a complicated figure

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By: t1110, Views: 1470

Application of cumulative frequency polygon

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By: t1110, Views: 1208

Difference in interior and exterior angles of polygon

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By: t1110, Views: 1165

Find the interior angles of regular polygon

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By: t1110, Views: 1422

Application of exterior angle of triangle in some complicated figure

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