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yarga [219]
3 years ago
14

One angle in an obtuse isosceles triangle measures 40°. What are the measures of the other two angles?

Mathematics
2 answers:
Ronch [10]3 years ago
7 0

Answer:

C.40° and 100°

Step-by-step explanation:

Damm [24]3 years ago
5 0
An obtuse triangle has one obtuse angle, or an angle that measures more than 90° but less than 180°. Options 1 and 2 are not correct, because these are acute angles.
So, one of the angles must be 40°, and the other may be 100° or 120°.
The measures of the angles in a triangle add up to 180°.
40^\circ + 40^\circ +x = 180^\circ \\
80^\circ + x=180^\circ \\
x=180^\circ - 80^\circ \\
x=100^\circ
The other two angles are 40° and 100°.
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