Question

give relevant answers...
try to do on a piece of paper....
urgently needed....
correct answers only..
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Answer 1

Answer:

8) 40,60,100,160 . 9) $\frac{13}{21}$

Step-by-step explanation:

8. ratio of quadrilateral = 2:3:5:8

2x+3x+5x+8x = 360

18x= 360

x = 20

hence, angles are : 40, 60, 100, 160

9. Let numerator be x

$\frac{x}{x+8}$

$\frac{x+17}{x+8-1}$= $\frac{3}{2}$

$\frac{x+17}{x+7}$ = $\frac{3}{2}$

now, by cross multiplication

2(x+17) = 3(x+7)

2x + 34 = 3x + 21

34 - 21 = 3x -2x

x = 13

hence, $\frac{x}{x+8}$ = $\frac{13}{21}$

Answer 2

Answer:

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