Performance Task: Tessellations — Unit test Answers
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Which statement describes the order of rotational symmetry for an isosceles triangle?
A
An isosceles triangle has an order 0 rotational symmetry because there is no angle at which it can be rotated onto itself.B
An isosceles triangle has an order 1 rotational symmetry because it does not have all congruent angles.C
An isosceles triangle has an order 2 rotational symmetry because it has 1 pair of congruent angles.D
An isosceles triangle has an order 3 rotational symmetry because it has 3 angles.23
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Point O is the center of dilation. Triangle D E F is dilated to create smaller triangle D prime E prime F prime. The length of O F prime is 3. The length of F prime F is 7.
A
Three-tenths
B
Three-sevenths
C
Seven-thirds
D
724
Triangle QRS is to be dilated using the rule .
A
2 unitsB
4 unitsC
6 unitsD
8 units25
Which solids have more than five planes of symmetry? Check all that apply.
A
cylindersB
cubesC
rectangular prismsD
square pyramidsE
conesF
regular triangular prisms26
Rectangle ABCD was dilated to create rectangle A'B'C'D' using point R as the center of dilation.
A
3 unitsB
5 unitsC
6 unitsD
9 unitsDid you find these answers helpful?
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