Question

Q12 One angle of a quadrilateral has measure
21"
and the measures of other three
5
angles are in the ratio 2:3:4. Find their
measures in degree and radian.​

Answer 1

Answer:

let 2:3:4 be x

Step-by-step explanation:

so one side is

2x

3x

4x

so now as we know that sum of all the angle of a quadrilateral is 360 °

then:

2x + 3x + 4x + 21 = 360°

9x = 360° - 21

9x = 339°

x = 339/9

x = 37.66

so :

2x =2*37.66 = 75.33

3x=3*37.66=113

4x=4*37.66=150.66

so the ques is solved

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