Question

A. Use the properties of triangles to find the value of x..

the figure in picture above↑↑↑↑↑​

Answer 1

Answer:

2y +50=180(ASP of triangle)

2y=180-50

2y=130

y=130/2

y=65

y+x=180(linear pair)

65+x = 180

x= 180- 65

x= 115

Answer 2

Find the value of x :

• In this figure one angle is marked. And that is 50°.

• It is an isosceles triangle.

• $(180 - 50)/2 = 65 \degree$
• so the other angles inside the triangle is 65°.

• $\sf \: 50 \degree + 65\degree +65\degree = \red {180\degree}$
• We know the sum of the angles inside a triangle = 180°

• $\sf \: x \degree = 180\degree - 65\degree = 115\degree$

• Over here the property linear pair is used.

So the value of x = 115 °

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