Triangles can be classified by the length of their ________ and the measure of their ________.
sides, angles
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25
Why is a square ALSO a rectangle?
A square has 2 pairs of parallel sides and 4 right angles...just like a rectangle.
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20
Which describes BOTH triangles?
It is D because ALL triangles have at least 2 acute angles. It's the third angle that classifies or names it.
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baam
Lose 15 points!
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gift
Win 10 points!
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gift
Win 25 points!
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baam
Lose 10 points!
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20
Why is a rectangle NEVER a square?
A rectangle does NOT have congruent (equal) sides.
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15
What is the greatest number of right angles any triangle can have?
only 1
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25
Look at the quadrilaterals. Name the shapes that can only be classified as quadrilaterals AND trapezoids
O, R, and S
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20
Classify this polygon in the most SPECIFIC way.
trapezoid
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20
True of False: A parallelogram is also a trapezoid.
True, because a parallelogram technically has at least one pair of parallel sides like a trapezoid.
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20
A rectangle has one side that is 6 centimeters long and another side that is 4 centimeters long. What is the perimeter of the rectangle?
20 centimeters
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baam
Lose 20 points!
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star
Double points!
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rocket
Go to first place!
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banana
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25
Quinn says that the figure is a rhombus, but Brooke disagrees. Who is correct and why?
Brooke is correct because the figure is a parallelogram. A rhombus ALWAYS has congruent (equal) sides and a parallelogram had 2 pairs of opposite equal sides.
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15
True or False: A rectangle can be classified as a rhombus.
False, because a rectangle does not have congruent (equal) sides.
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25
What quadrilateral is both a rectangle AND a rhombus?
square
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seesaw
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seesaw
Swap points!
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rocket
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banana
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20
True or False: A trapezoid is also a parallelogram.
False: A trapezoid only has 1 pair of parallel sides and a parallelogram has 2 pairs.