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23-02-2022
Mathematics

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An isosceles triangle has an angle that measures 138º. Which other angles could be in that
isosceles triangle? Choose all that apply.
21°
20°
700
8°

An isosceles triangle has an angle that measures 138º Which other angles could be in that isosceles triangle Choose all that apply 21 20 700 8 class=

Respuesta :

akabane009 akabane009

23-02-2022

Answer:

Let the two equal angles be x,

so,

x + x + 138° = 180°

or, 2x = 180° - 138°

or, 2x = 42°

so, x = 42°/2

so, x = 21°

21° is the answer.

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