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Classify Triangles by Sides and Angles
Worksheet
Grade Level
Grade 4
4.156 Classify Triangles by Sides and Angles
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A triangle has two equal side marks and one angle greater than 90 degrees. A student labels it scalene obtuse. Which part of the label should be changed?
A
Change scalene to isosceles, because two sides are equal.
B
Change obtuse to acute, because two sides are equal.
C
Change scalene to equilateral, because two equal sides always mean three equal sides.
D
Change obtuse to right, because the angle is greater than 90 degrees.
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