Question

In an isosceles triangle, one of the base angles is 70⁰ . Then the measure of the vertical angle is *​

Answer 1

Answer:

40 degree

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Answer 2

Answer:

55°

Step-by-step explanation:

now,

b=c

let the angles of the triangle be:

a-b-c

a+b+c=180°

let a=70°

now

a+2b=180°

70°+2b=180°

2b=180°-70°

2b=110°

b=110°÷2

b=55°

hence, b=C

C=55°