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Akimi4 [234]
2 years ago
8

An isosceles triangle has base angles that each measure 69o. Which equation can be used to find x, the measure of the third angl

e?
a
138 + x = 180
b
69 + x = 180
c
138 + 2x = 180
d
2x + 69 = 180
Mathematics
1 answer:
MArishka [77]2 years ago
7 0

Answer:

a. 138 + x = 180

Step-by-step explanation:

Because the angles given are 69+69

which equal 138

and x being the missing angle

finally the total of all angles in a triangle = 180

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