NC EOG/EOC Grade 8 Geometry. Practice it free.

EOG grade 8 domain (24-28% of the test, Table 2). Understand congruence and similarity using physical models, transparencies, or geometry software; understand and apply the Pythagorean Theorem; and solve real-world and mathematical problems involving volume of cylinders, cones, and spheres. This Grade 8 reporting domain maps to 9 practice skills and 8 representative questions from the playable bank.

Grade 8G9 mapped skills
What the test measures

Geometry skills

  1. Understand congruence and similarity using transformations

  2. Understand and apply the Pythagorean Theorem

  3. Solve real-world and mathematical problems involving volume of cylinders, cones, and spheres

Standards basis

North Carolina Standard Course of Study (NCSCOS) — North Carolina

How the NC EOG/EOC reports it

North Carolina’s math assessments are state-developed EOG/EOC tests aligned to the North Carolina Standard Course of Study (NCSCOS) for Mathematics, adopted June 2016, rather than a shared multistate framework. The EOG Grades 3-8 Mathematics Test Specifications and the EOC NC Math 1 and NC Math 3 Test Specifications publish, in Table 1/Table 2, the range of total items by domain (the official domain weight distributions). The NCSCOS K-8 domains carry CCSS domain codes (NC.3.OA, NC.8.F, …) and are CCSS-derived; NC Math 1 and NC Math 3 are integrated high-school EOC courses whose standards carry NC.M1/NC.M3 conceptual-category codes (Number and Quantity, Algebra, Functions, Geometry, Statistics and Probability).

Blueprint & weighting

Published per-domain weight ranges come from the NC DPI EOG/EOC Mathematics Test Specifications (April 2026), Table 1/Table 2 (range of total items by domain). EOG grades 3-5 (Table 1): Operations and Algebraic Thinking 32-36% (g3) / 14-18% (g4) / 9-13% (g5); Number and Operations in Base Ten 9-13% / 25-29% / 25-29%; Number and Operations – Fractions 28-32% / 30-34% / 39-43%; Measurement and Data, Geometry 23-27% / 23-27% / 19-23%. EOG grades 6-8 (Table 2): Ratios and Proportional Relationships 24-28% (g6) / 24-28% (g7) / — (g8); The Number System 20-24% / 8-12% / —; Expressions and Equations 22-26% / 20-24% / —; The Number System, Expressions and Equations (combined) — / — / 24-28%; Functions — / — / 28-32%; Geometry 12-16% / 16-20% / 24-28%; Statistics and Probability 12-16% / 22-26% / 16-20%. EOC (Table 1): NC Math 1 — Number and Quantity and Algebra 36-40%, Functions 32-36%, Geometry 8-12%, Statistics and Probability 18-20%; NC Math 3 — Number and Quantity and Algebra 32-36%, Functions 32-36%, Geometry 20-24%, Statistics and Probability 8-12%.

Try it now

8 free questions · 0/0 correct

Practice playeasy

A cylinder has r2=9r^2 = 9 and height 33. Using π=3\pi = 3, what is its volume?

V=πr2h=3×9×3=81V = \pi r^2 h = 3 \times 9 \times 3 = 81.

Practice playeasy

In ABC\triangle ABC, B\angle B and C\angle C are congruent. The measure of A\angle A is 124.8124.8^{\circ}. What is the measure of C\angle C?

Each congruent angle is 180124.82=27.6\dfrac{180^{\circ} - 124.8^{\circ}}{2} = 27.6^{\circ}.

Practice playeasy

What is the sum of the interior angles of a hexagon?

A hexagon has 66 sides: (62)×180=720°(6-2) \times 180 = 720°.

Practice playeasy

A right triangle has an acute angle that measures 22.22^{\circ}\textsf{.} What is the measure of the other acute angle?

The right angle measures 90,90^{\circ}\textsf{,} and the sum of the interior angles of a triangle is 180.180^{\circ}\textsf{.} The other acute angle measures 1809022=68.180^{\circ} - 90^{\circ} - 22^{\circ} = 68^{\circ}\textsf{.}

Practice playeasy

What is the distance from (2,3)(2, 3) to (9,3)(9, 3)?

Both points have y=3y = 3, so the distance is 92=7|9 - 2| = 7.

Practice playeasy

Find the hypotenuse of a right triangle whose legs are 2121 m and 2828 m.

The legs are 2121 and 2828. By the Pythagorean theorem, 212+282=441+784=1,22521^{2} + 28^{2} = 441 + 784 = 1{,}225, so the hypotenuse is 1,225=35\sqrt{1{,}225} = 35.

Practice playeasy

A right triangle has one leg 55 and hypotenuse 1313. What is the other leg?

13252=16925=14413^{2} - 5^{2} = 169 - 25 = 144, so the other leg is 144=12.\sqrt{144} = 12\textsf{.}

Practice playeasy

A 2626-meter guy wire runs from the top of a pole to a stake 2424 meters from the pole's base. How tall is the pole?

The wire is the hypotenuse: 262242=676576=10026^{2} - 24^{2} = 676 - 576 = 100, so the pole is 100=10\sqrt{100} = 10 meters tall.

Keep practicing

Turn geometry into game time.

The NC EOG/EOC placement starts with this test's real coverage map and finds the right difficulty.