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by BlastRoom
Name a triangle equilateral, isosceles, or scalene by comparing the lengths of its sides.
#triangles#us_grade_4_math
40 questions
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A triangle has sides of 9 cm, 9 cm, and 9 cm. What is the most specific name for this triangle?
A triangle has sides of 6 cm, 7 cm, and 8 cm, so no two sides are equal. What is this triangle called?
A triangle has sides of 5 cm, 8 cm, and 8 cm, so two sides are equal and one is different. What is this triangle called?
A triangle has three sides that are all different lengths. A triangle like this is called ___.
A triangle has sides of 10 cm, 10 cm, and 6 cm, so two sides are equal in length. A triangle like this is called ___.
Is a triangle with sides 3 cm, 5 cm, and 7 cm scalene, isosceles, or equilateral?
A triangle has one 90 degree angle and two sides that are equal in length. What is this triangle called when it is named by its sides?
A triangle has angles of 100, 40, and 40 degrees, and its two shorter sides are equal in length. Name this triangle by its side lengths.
A triangle with sides of 6 cm, 6 cm, and 10 cm is scalene.
A scalene triangle has how many sides that are equal in length?
A triangle has side lengths 6 cm, 6 cm, and 6 cm. How is it classified by side lengths?
A triangle has side lengths 7 cm, 7 cm, and 3 cm. How is it classified by side lengths?
A triangle has side lengths 4 cm, 7 cm, and 9 cm. How is it classified by side lengths?
A triangle has one angle like the one shown. How is it classified by angles?
A triangle has angles 50°, 60°, and 70°. How is it classified by angles?
A triangle has angles 30°, 40°, and 110°. How is it classified by angles?
True or False: A scalene triangle has no equal sides.
True or False: A right triangle must have exactly one 90° angle.
Which description matches an equilateral triangle?
Which description matches a scalene triangle?
A triangle has side lengths 10 cm, 4 cm, and 10 cm. Which side-length classification fits?
A triangle has angles 45°, 45°, and 90°. How is it classified by angles?
A triangle has angles 80°, 80°, and 20°. How is it classified by angles?
A triangle has angles 25°, 35°, and 120°. How is it classified by angles?
True or False: An equilateral triangle has three sides of different lengths.
True or False: An obtuse triangle has one angle greater than 90°.
Which triangle can be classified as both isosceles and right?
A triangle has sides marked with three different tick marks. What side-length classification is this?
A triangle has one tick mark on each of its three sides. What side-length classification is this?
A triangle has two sides marked with the same tick mark and the third side marked differently. What side-length classification is this?
Which angle measure could be the largest angle in an obtuse triangle?
Which angle measure could be an angle in a right triangle that makes it a right triangle?
Which set of angles makes an acute triangle?
Which set of angles makes a right triangle?
Which set of angles makes an obtuse triangle?
True or False: A triangle can be both scalene and obtuse.
True or False: Every acute triangle has one 90° angle.
A triangle has side lengths 5 cm, 5 cm, and 8 cm. Its angles are shown. Which classification pair is correct?
A triangle has side lengths 7 cm, 9 cm, and 11 cm, and all angles are less than 90°. Which classification pair is correct?
A triangle has side lengths 14 cm, 14 cm, and 14 cm. What is the best side-length classification?
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40 questions
