Let the base angles be

′

x

′

Therefore,

x+x+40

∘

=180

∘

[Given]

2x=180

∘

−40

∘

2x=140

∘

x=70

∘

Hence,

The base angles of the triangle are 70

∘

,70

∘

.

Answer:

i will help

Step-by-step explanation:

look when a isoceles triangle has only one base angle then the other base angle is same cause in isoceles triangl both base angles are same so:-

3x+75+75=180

3x+150=180

3x=180-150

3x=30

x=30/3

x=10

this is the answer so the third and different angle is 10