# Similar triangles

The triangles ABC and XYZ are similar. Find the missing lengths of the sides of the triangles.

a) a = 5 cm b = 8 cm

x = 7.5 cm z = 9 cm

b) a = 9 cm c = 12 cm

y = 10 cm z = 8 cm

c) b = 4 cm c = 8 cm

x = 4.5 cm z = 6 cm

a) a = 5 cm b = 8 cm

x = 7.5 cm z = 9 cm

b) a = 9 cm c = 12 cm

y = 10 cm z = 8 cm

c) b = 4 cm c = 8 cm

x = 4.5 cm z = 6 cm

### Correct answer:

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#### You need to know the following knowledge to solve this word math problem:

**geometry**- similarity of triangles
**algebra**- expression of a variable from the formula
**planimetrics**- triangle
**basic functions**- ratio

#### Units of physical quantities:

#### Grade of the word problem:

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