Question

find the unknown angle in the given Triangle ​

Answer 1

Answer:

the upper traingle is the unknown

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Answer 2

Answer:

a = 43

p = 137

Step-by-step explanation:-

let the name of traingle be ABC .

The angles of equal sides are always equal. -------(1)

AS, we know the sum of two interior angle is opposite exterior angle . -------------(2)

Therefore ,

86 = a + a(from ----(1)) (from ----(2))

2a = 86a = 86 / 2

a = 43

180 = 86 - b( linear pair)

b = 94

p = 43 + 94 (from ---- (2))

p = 137

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