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In quadrilateral ABCD the four angles are in the ratio 1 : 2 : 3 : 4.
Before constructing, find the largest angle.

Class 8Constructing QuadrilateralsGeometry

A288
B144
C159
D129

Step-by-Step Solution

Let the angles be

x, 2 x, 3 x, 4 x

. Sum =

10 x = 360

, so

x = 36

deg. Largest =

4 x = 4 \times 36 = 144

deg.

Answer: B) 144

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