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Question

Find all the angles of a right angled isosceles triangle.  [3 MARKS]


Solution

Applying property of triangle: 1 Mark
Steps: 1 Mark
Result: 1 Mark

In right angled isosceles triangle, sides other than the hypotenuse are equal in length.

In ABC, AB = BC 1 = 3 -------------------I

By angle sum property of triangle,

1 + 2 + 3 = 180°

1 + 90 + 1 = 180°

2 1 = 90°

1 = 45° = 2

So, angles are 45°, 45° and 90°.


Mathematics

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