Question

If one of the base angles of an isosceles triangle is 55°, then its vertex angle is​

Answer 1

Answer:

Given two equal angle of isoscles triangle

are 55

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Let third angle be x then

x+55+55=180

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[angle sum property]

x=180−110

∘

(x=70

∘

)

∴ the other angle is 70

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