Q19 of 33 Page 11

Construct a triangle if its perimeter is 10.4 cm and two angles are 45° and 120°.

Steps of construction:

1. Draw a line XY = 10.4 cm



2. Make an angle equal to ∠B = 45° at X and ∠C = 120° at Y.



3. Bisect ∠LXY and ∠MYX and intersect them at A.



4. Draw perpendicular bisector of AX and AY. Join AB and AC.



ABC is the required triangle.


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