Find ∠C and hence classify each triangle according to:
a. the number of equal sides it has, and
b. the type of angles it has, e. g. equilateral triangle & acute-angled
triangle.
Given Angles ∠C Number of equal
sides

Types of Triangle .∠A = 70
∠B = 40

a) 2

b) isosceles and acute-angled triangle

Step-by-step explanation:

∠A = 70

∠B = 40

∠C = 180 - 70 - 40 = 70

Two equal angles so 2 equal sides

It's an isosceles triangle

Since all angles are acute, it's also an acute angled triangle

.mp4 files, because, video

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