4. Classify the following triangles . a) 30° 80 ° 70 ° b) 6 cm, 8 cm, 6 cm c)130°, 20°, 30 d) 5 cm, 5 cm, 5 cm
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a) acute angled triangle ( because all angles are acute)
b) isosceles triangle ( 2 sides are equal)
c) obtuse angled triangle ( has one obtuse angle)
d) equilateral triangle ( all sides are equal)
b) isosceles triangle ( 2 sides are equal)
c) obtuse angled triangle ( has one obtuse angle)
d) equilateral triangle ( all sides are equal)
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