Question

please solve this sums

Answer 1

Q 1
Angle A =x
Angle B=5x
Angle C=4x
Angle D =2x
Angle A+B+C+D= 360 (angle sum property of quadrilateral)
x+5x+4x+2x=360
12x=360
x=360÷12
x=30°
Angle A=30
Angle B=150
Angle C=120
Angle D=60

Answer 2

Answer:

1)x=30 and angles are 30,150,120 and 60

2)22 cm

Step-by-step explanation:

Always remember that the sum of angles in a quadrilateral is 360

So,

⇒$x+5x+4x+2x=360$

⇒$12x=360$

⇒$x=30$

Solving for the angles, we get 30,150,120 and 60 degrees

Now for the second problem,

Remember that the perimeter of a parallelogram is twice the sum of its non equal sides that is 2(a+b)

⇒$2(6+5)$

⇒$22cm$

Hope that helps!... :)