Free · Printable · TEKS 8.10A · Two-dimensional Shapes
TEKS 8.10A Worksheets — Grade 8 Generalize the properties of orientation and congruence
694+ Texas-aligned practice questions on this exact Grade 8 standard. Print at home or practice online with a built-in AI tutor. No sign-up, no paywall.
What TEKS 8.10A says: Generalize the properties of orientation and congruence of rotations, reflections, translations, and dilations of two-dimensional shapes on a coordinate plane.
This page has 694+ practice questions tagged specifically to TEKS 8.10A. Below: a sample of 8 with answers and explanations so you can preview the worksheet before printing. Every question goes through an AI quality gate (gpt-4o for content review, Claude Sonnet 4.5 for math verification) before publishing.
Cognitive demand: medium. Typical question shape: Pre-image; identify image after specified transformation.
Reflect the point (-8, -8) across the x-axis. What are the new coordinates?
- (-8, 8) ✓
- (8, 8)
- (8, -8)
- (-8, -8)
Why: Reflecting across the x-axis negates y: (-8, -8) → (-8, 8).
Rotate the point (-6, -4) 180° about the origin. What are the new coordinates?
- (6, 4) ✓
- (4, 6)
- (-6, 4)
- (6, -4)
Why: A 180° rotation negates both: (-6, -4) → (6, 4).
Point P(8, 4) is translated right 1 and down 2. What are the new coordinates?
- (9, -2)
- (2, 9)
- (-9, 2)
- (9, 2) ✓
Why: Add (1, -2) to (8, 4) to get (9, 2).
Point P(1, 6) is translated right 1 and down 5. What are the new coordinates?
- (1, 2)
- (-2, 1)
- (2, -1)
- (2, 1) ✓
Why: Add (1, -5) to (1, 6) to get (2, 1).
Rotate the point (4, -3) 180° about the origin. What are the new coordinates?
- (-4, 3) ✓
- (-4, -3)
- (3, -4)
- (4, 3)
Why: A 180° rotation negates both: (4, -3) → (-4, 3).
Reflect the point (-5, -1) across the x-axis. What are the new coordinates?
- (1, -5)
- (-5, -1)
- (-5, 1) ✓
- (5, 1)
Why: Reflecting across the x-axis negates y: (-5, -1) → (-5, 1).
Point P(-8, -1) is translated left 2 and down 6. What are the new coordinates?
- (-10, 7)
- (-10, -7) ✓
- (-7, -10)
- (10, -7)
Why: Add (-2, -6) to (-8, -1) to get (-10, -7).
Reflect the point (-7, -2) across the x-axis. What are the new coordinates?
- (7, 2)
- (-7, 2) ✓
- (2, -7)
- (-7, -2)
Why: Reflecting across the x-axis negates y: (-7, -2) → (-7, 2).
Common questions about TEKS 8.10A
What is TEKS 8.10A?
TEKS 8.10A is a Grade 8 Two-dimensional Shapes standard from the Texas Essential Knowledge and Skills. The standard says: Generalize the properties of orientation and congruence of rotations, reflections, translations, and dilations of two-dimensional shapes on a coordinate plane.
How many TEKS 8.10A practice questions are available?
694+ practice questions tagged to TEKS 8.10A. All free to print or practice online. We pull a fresh set each time you print a worksheet so your kid doesn't see the same questions twice.
What kind of questions test TEKS 8.10A on the STAAR?
Pre-image; identify image after specified transformation. TEKS 8.10A is a medium-cognitive-demand standard — 1-2 step questions are typical.
Where do these questions come from?
Generated by our AI pipeline, then independently quality-gated by two cross-vendor models (gpt-4o for content review, Claude Sonnet 4.5 for math verification) before publishing. Every question is tagged to TEKS 8.10A and modeled on real STAAR item shapes. No typos, no wrong answer keys, no broken explanations.