Question

xyzw is isosceles trapezium xy parallel zw angle zis 40°find all angle​

Answer 1

Answer:

y+z=180(adj ang.)

z=40

so y=140

also x=140 angle of iso scales trapzium

and x+w=180(adj. ang.)

so w=40

Answer 2

Given : xyzw is isosceles trapezium xy parallel zw

∠Z = 40°

To Find :  All the angles

Solution:

xyzw is isosceles trapezium

xy || zw

=> yz = xw

Hence ∠x = ∠y

and ∠z = ∠w

∠z = 40°

Hence ∠w = 40°

∠y + ∠z = 180°

=> ∠y + 40° = 180°

=> ∠y   = 140°

∠x = ∠y

=> ∠x   = 140°

Angles of  isosceles trapezium  xyzw

∠x   = 140°

∠y   = 140°

∠z = 40°

∠w = 40°

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