in quadrilaterl the angles x°(x+10)°,(x+20)°, (x+30)°. find the angles
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Given : In a quadrilateral the angles are x° (x + 10)° (x + 20)° and (x + 30)°
To Find : Those angles.
⠀⠀⠀⠀⠀⠀_______________
Here
- 1st angle of the quadrilateral = x°
- 2nd angle of the quadrilateral = (x + 10)°
- 3rd angle of the quadrilateral = (x + 20)°
- 4th angle of the quadrilateral = (x + 30)°
As we know that :
- Sum of the angles of a quadrilateral is 360°
Now, we'll put the values in the formula and find the value of x and then we can find all angles of the quadrilateral.
=> x + (x + 10) + (x + 20) + (x + 30) = 360
=> x + x + 10 + x + 20 + x + 30 = 360
=> x + x + x + x + 10 + 20 + 30 = 360
=> 4x + 60 = 360
=> 4x = 360 - 60
=> 4x = 300
=> x = 300/4
=> x = 75
Now, put the value of x in the angles.
- 1st angle = x = 75°
- 2nd angle = x + 10 = 85°
- 3rd angle = x + 20 = 95°
- 4th angle = x + 30 = 105°
∴ Hence, all angles of the quadrilateral are 75°, 85°, 95° and 105° respectively.
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