Question

Identify the type of triangle in each of the following cases. (3 marks)

A triangle :
(a) with one angle equal to 120°
(b) with one angle equal to 90°
(c) with all sides equal
(d) with two equal sides
(e) with all sides of different lengths
(f) with all angles less than 90°

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Answer 1

Answer:

a) Obtuse-angled triangle

b) Right-angled triangle

c) Equilateral triangle

d) Isosceles triangle

e) Scalene triangle

f) Acute-angled triangle

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