Question

the four angles of a quadrilateral are in the ratio of 3:5:7:9 . then what's the smallest angle ? ​

Answer 1

Step-by-step explanation:

Let the numbers be 3x,5x,7x,9x

We know that the sum of a quadrilaterals is 360

3x+5x+7x+9x=360

24x=360

X=360/24

x=90/6=30/2=15

3x=3×15=45

5x=5×15=75

7x=7×15=105

9x=9×15=135

Answer 2

Answer:

let the angles be 3x, 5x, 7x, 9x

then,

3x + 5x + 7x + 9x = 360

24x = 360

x = 360/24

x= 15

3x = 45°

5x = 75°

7x = 105°

9x = 135°

so smallest angle is 45°

Hope it helps