Question

are in
Adjacent angles of a parallelogram
7:2. Find all the angles.

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Answer 1

Answer:

let ratio be x (7x 2x

we know that, area of a quardilatral ki 360

so 7x+2x+7x+2x =360

18x = 360

x= 360/18

x = 20

7x = 7*20= 140

2x= 2*20=40

Answer 2

Explanation:

• SUM OF ADJACENT ANGLES IN A PARALLELOGRAM = 180°
• Let both angles of figure be 'x'.

Solution:-

$7x + 2x = 180$

$9x = 180$

$x = 20$

• Angle 1st = 7x = 7 × 20 = 140°
• Angle 2nd = 2 × 20 = 40°
• Angle 3rd = Angle 1st = 140°
• Angle 4th = Angle 2nd = 40°. Answer