Question

Q.1
In the adjoining figure find the value of x and y

Answer 1

Answer:

105° is the answer

Step-by-step explanation:

im triangle ABC

A + B +C =180°

B+C =180-30=150

B+x=180

75+x=180

x=180-75

x=105°

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Answer 2

Step-by-step explanation:

∆ABC is an isosceles triangle, since AB=AC

angle b=angle C=Z

so, angle A+ angle B+ angle C=180°{ angle sum property of∆}

30°+Z +Z=180°

2Z =150°

Z=150°/2

z=75°

angle B=angle C=75°

Now, angle B+ x=180°{linear pair}

75°+x=180°

x=105°

angle C+Y=180°{ linear pair}

75° +Y = 180°

Y = 180°-75°

Y=105°

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