Page 16 - 新思维数学活动用书5 样章
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2 2D shape and pattern
2.1 Triangles
Worked example 1
equilateral triangle
Is this triangle isosceles? isosceles triangle
scalene triangle
Measure the length of each side of the
4 cm triangle.
5 cm In an isosceles triangle, two sides have
the same length.
6 cm
The sides are all different lengths.
Answer: No, the triangle is not isosceles.
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