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Answered by
6
Step-by-step explanation:
sum of all angles of triangle = 180°.
take base angle as x.
vertex angle = 40
40+x+x = 180
2x = 180-40
2x = 140
x = 140/2
x= 70°.
sum of base angles = 140°.
base angles = 70° each.
Answered by
0
HEY MATE,
If vertex angle = 40°
let the two equal angles be x°
Now, In the Triangle,
x + x + 40° = 180° ( ASP of ∆ )
2x = 140
x = 140/2 = 70°
Hence, x = 70°
Thus, The base angles of triangle are 70° each. ✔️
THANK YOU...✌️
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