9.03 Similarity and transformations
Interactive practice questions
Consider the figures shown.
Are the two triangles congruent, similar or neither?
Congruent
Similar
Neither
What is the scale factor of the dilation from triangle $ABC$ABC to triangle $A'B'C'$A′B′C′?
Consider the figures shown.
Consider the triangle with vertices at $A$A$\left(-3,-2\right)$(−3,−2), $B$B$\left(2,1\right)$(2,1) and $C$C$\left(3,-3\right)$(3,−3), and the triangle with vertices at $A'$A′$\left(-9,-6\right)$(−9,−6), $B'$B′$\left(6,3\right)$(6,3) and $C'$C′$\left(9,-9\right)$(9,−9).
Consider the quadrilateral with vertices at $A$A$\left(-2,-1\right)$(−2,−1), $B$B$\left(-2,1\right)$(−2,1), $C$C$\left(1,1\right)$(1,1) and $D$D$\left(1,-1\right)$(1,−1), and the quadrilateral with vertices at $A'$A′$\left(-6,-3\right)$(−6,−3), $B'$B′$\left(-6,3\right)$(−6,3), $C'$C′$\left(3,3\right)$(3,3) and $D'$D′$\left(3,-3\right)$(3,−3).