Question

find the x value on figure​

Answer 1

Answer:

angle BDC

80+ y = 180 linear pair angle

y = 80

by angle sum property

x+ 50+80 = 180

x =50

Answer 2

Answer:

Question :

To Find X° in the figure.

Solution :

Given angles :

• ∠C = 50°

• ∠D =80°

Lets Find ∠y ,

We know that ∠y and ∠D are Linear pair.

⟶ ∠y + ∠D = 180°

⟶ ∠y + 80 = 180

⟶ ∠y = 180 - 80

⟶ ∠y = 100

∠Y = 100°

Let's find ∠X ,

⟶ ∠Y + ∠C + ∠X = 180° ( Angle Sum Property )

⟶ 100 + 50 + ∠X = 180

⟶ 150 + ∠X = 180

⟶ ∠X = 180 - 150

⟶ ∠X = 30

∴ ∠X = 30°

In ∆BDC ,

∠B ( x° ) = 30°

∠D ( y° ) = 100°

∠C = 50°

⟶ 30 + 100 + 50 = 180°

See the Attachment ;