(1 marks each for correct steps Total – 4 marks) [Answer from BOARD Answer key]

Ans.

a) Select “Polygon” tool and click point A, B, C and on Graphic view to get triangle ABC.

b) Select “Angle” tool to measure interior angles α, β and ϒ of the triangle ABC.

c) By selecting the required vertices of the triangle in clockwise direction to get the interior angles α, β and ϒ of the triangle ABC.

d) Input α + β + ϒ in the input bar and enter to get sum of the interior angles of the triangle as 180° on the Algebraic view.

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