Chapter 16 — Practice 1

Two lines meet at a 30° angle. Are they perpendicular? Explain.

Two drawn straight lines have perpendicular separation 7 cm at one location and 7 cm at another. Does this observation support the claim that their separation is constant?

Using the vertical reference line on the grid, draw a perpendicular through grid row 6 and another distinct parallel vertical line at least 2 grid spaces away. Label both.

State two defining geometric properties of a rhombus.

A paper cutout has the shape of a square. How many reflection-symmetry lines does it have?

Reflect vertices (1,2), (5,2), and (2,7) across x = 6. Give reflected points and draw the image.

Two lines meet at a 110° angle. Are they perpendicular? Explain.

Two drawn straight lines have perpendicular separation 2 cm at one location and 2 cm at another. Does this observation support the claim that their separation is constant?

Using the vertical reference line on the grid, draw a perpendicular through grid row 4 and another distinct parallel vertical line at least 3 grid spaces away. Label both.

State two defining geometric properties of a rectangle.

A folded shape has the shape of an isosceles non-equilateral triangle. How many reflection-symmetry lines does it have?

Reflect vertices (1,2), (4,3), and (3,5) across x = 6. Give reflected points and draw the image.

Two lines meet at a 85° angle. Are they perpendicular? Explain.

Two drawn straight lines have perpendicular separation 3 cm at one location and 3 cm at another. Does this observation support the claim that their separation is constant?

Using the vertical reference line on the grid, draw a perpendicular through grid row 6 and another distinct parallel vertical line at least 4 grid spaces away. Label both.

Can a rhombus be a parallelogram? Justify.

A folded shape has the shape of a circle. How many reflection-symmetry lines does it have?

Reflect vertices (2,1), (5,3), and (4,7) across x = 6. Give reflected points and draw the image.