Math, asked by mahaveermj8238, 1 day ago

In an isosceles triongle if the vertex angle is thric the sum of the based angles then the measure of the vertex angle is

Answers

Answered by sarasuniradhara447
0

Answer:

Ans:120 Degree

Step-by-step explanation:

The correct option is B

 

120

(b),

I

n

 

Δ

A

B

C

,

A

=

2

(

B

+

C

)

=

2

B

+

2

C

A

d

d

i

n

g

 

2

A

 

to both sides,

A

+

2

A

=

2

A

+

2

B

+

2

C

 

3

A

=

2

(

A

+

B

+

C

)

 

3

A

=

2

×

180

(

 

A

+

B

+

C

=

180

)

 

3

A

=

360

 

A

=

360

3

=

120

 

A

=

120

 

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