Similar Polygons - Regular Geometry

Solve the proprortion.

• y = 3

• y = -3

• y = 1

• y = -1

Pick the correct answer for a correct pair of congruent angles and corresponding sides given the similarity statement above.

• $\angle C\cong\angle O,\ \frac{CA}{OG}$

• $\angle T\cong\angle G,\ \frac{DO}{AT}$

• $\angle D\cong\angle A,\ \frac{AT}{OG}$

• $\angle C\cong\angle D,\ \frac{CT}{DG}$

Find the scale factor of EFGH to JKLM.

• $\frac{1}{2}$

• $\frac{2}{1}$

• $\frac{7}{10}$

• $\frac{10}{7}$

Triangles ABC and DEF and are similar. Which statement is not correct?

• A

• B

• C

What is the scale factor of WXYZ to MNOP that are similar?

• $\frac{4}{5}$

• $\frac{5}{4}$

• $\frac{6}{5}$

• $\frac{5}{6}$

Using your answer from #5, solve for x and z.

Again, WXYZ is similar to MNOP.

• x= 15, z = 45

• x = 15, z = 135

• x = 9.6, z = 45

• x = 9.6, z =135

The perimeters of two similar polygons are 20 and 28. One side of the smaller polygon has length 4. What is the length of the corresponding side of the larger polygon?

• 20

• 28

• 2.85

• 5.6

Two objects that are the same shape but not the same size are _______.

• Congruent

• Similar

• Vertical

• Complementary

Matching sides are called ___________________.

• corresponding sides

• corresponding angles

• the same

• congruent sides

Which is the correct similarity statement for the similar triangles?

• $\Delta ABC\sim\Delta PQR$

• $\Delta ABC\sim\Delta RPQ$

• $\Delta CAB\sim\Delta QPR$

• $\Delta BAC\sim\Delta RPQ$