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5 votes
An isosceles triangle has an angle that measures 116.6°. Which other angles could be in that isosceles triangle? Choose all that apply.

77.6
31.7
59.5
116.6

1 Answer

5 votes
D is wrong. It can't have 2 angles equal to or greater than 90.

2x + 116.6 = 180
2x = 180 - 116.6
2x = 63.4
x = 63.4/2
x = 31.7 Two of this size are the only possible answers.
User Luanjunyi
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