Question

4.The angles of a quadrilateral are in the ratio 2:4:5:7, find its smallest angle
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Answer 1

Answer:

40°

Step-by-step explanation:

total angle = 360°

the angles can be written as 2x, 4x, 5x, 7x

sum of these angles equals 360

2x + 4x + 5x + 7x = 360°

18x = 360°

x = 20°

the smallest angle = 2x = 40°