SC READY Grade 8 Measurement, Geometry, and Spatial Reasoning. Practice it free.

Determine the measurements of geometric figures; determine angle and/or side relationships; graph on a coordinate plane. This Grade 8 reporting domain maps to 9 practice skills and 8 representative questions from the playable bank.

Grade 8MGSR9 mapped skills
What the test measures

Measurement, Geometry, and Spatial Reasoning skills

  1. 8.MGSR.1.1 to 1.4

  2. 8.MGSR.2.1 to 2.5

  3. 8.MGSR.3.1 to 3.7

Standards basis

2025 South Carolina College- and Career-Ready Mathematics Standards — South Carolina

How the SC READY reports it

SC READY is South Carolina’s state assessment program and does not use a national blueprinted framework like SBAC or NAEP. Its math tests are aligned to the 2025 South Carolina College- and Career-Ready Mathematics Standards and organized into state-specific reporting categories.

Blueprint & weighting

The blueprint publishes approximate item-count ranges by reporting category, not percentages. Grade 3: DPSR 7-10, MGSR 15-18, NR 15-18, PAFR 9-13; Grade 4: DPSR 7-9, MGSR 12-15, NR 12-15, PAFR 15-19; Grade 5: DPSR 8-10, MGSR 11-14, NR 9-11, PAFR 17-21; Grade 6: DPSR 9-11, MGSR 11-14, NR 7-9, PAFR 18-21; Grade 7: DPSR 11-14, MGSR 13-17, NR 6-8, PAFR 14-18; Grade 8: DPSR 8-10, MGSR 15-19, NR 7-9, PAFR 14-18. All grades are 50 operational items, with additional field-test items; DOK ranges are 15-40% level 1, 55-85% level 2, and 0-10% level 3.

Practice by skill

Topics mapped to this domain

Distance formula

Grade 815 questions

Volume of prisms and cylinders

Grade 731 questions

Isosceles triangle angles

Grade 810 questions

Polygon angle formulas

Grade 815 questions

Triangle angle sum

Grade 810 questions

Finding a missing side with the Pythagorean theorem

Grade 810 questions

Pythagorean theorem

Grade 811 questions

Pythagorean theorem in context (SAT/ACT)

Grade 86 questions

Rectangle diagonal from area (ACT)

Grade 83 questions
Try it now

8 free questions · 0/0 correct

Practice playeasy

The distance between (0,0)(0, 0) and (6,8)(6, 8) is dd. What is d2d^{2}?

d2=62+82=36+64=100d^{2} = 6^2 + 8^2 = 36 + 64 = 100.

Practice playeasy

A cylinder has radius 22 and height 33. Using π=3\pi = 3, what is its volume?

V=πr2h=3×4×3=36V = \pi r^2 h = 3 \times 4 \times 3 = 36.

Practice playmedium

In △JKL\triangle JKL, ∠J\angle J and ∠L\angle L are congruent. The measure of each of these angles is 61.7∘61.7^{\circ}. What is the measure of ∠K\angle K?

The two congruent angles total 2×61.7∘=123.4∘2 \times 61.7^{\circ} = 123.4^{\circ}, so ∠K=180∘−123.4∘=56.6∘\angle K = 180^{\circ} - 123.4^{\circ} = 56.6^{\circ}.

Practice playeasy

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

A decagon has 1010 sides: (10−2)×180=1440°(10-2) \times 180 = 1440°.

Practice playeasy

The angles of a triangle measure 33∘,33^{\circ}\textsf{,} 88∘,88^{\circ}\textsf{,} and k∘.k^{\circ}\textsf{.} What is the value of k?k\textsf{?}

The sum of the interior angles of a triangle is 180∘.180^{\circ}\textsf{.} So k∘=180∘−33∘−88∘,k^{\circ} = 180^{\circ} - 33^{\circ} - 88^{\circ}\textsf{,} and k=59.k = 59\textsf{.}

Practice playmedium

In a right triangle, one leg is 99 feet and the hypotenuse is 4141 feet. How long is the other leg?

Let the missing leg be xx. Then x2+92=412x^{2} + 9^{2} = 41^{2}, so x2=412−92=1,681−81=1,600x^{2} = 41^{2} - 9^{2} = 1{,}681 - 81 = 1{,}600 and x=1,600=40x = \sqrt{1{,}600} = 40.

Practice playeasy

One leg of a right triangle is 1010 and the hypotenuse is 2626. What is the missing leg?

262−102=676−100=57626^{2} - 10^{2} = 676 - 100 = 576, so the missing leg is 576=24.\sqrt{576} = 24\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: 262−242=676−576=10026^{2} - 24^{2} = 676 - 576 = 100, so the pole is 100=10\sqrt{100} = 10 meters tall.

Keep practicing

Turn measurement, geometry, and spatial reasoning into game time.

The SC READY placement starts with this test's real coverage map and finds the right difficulty.

Batting Cage game coverBatting CagePlay →Blaster Gate game coverBlaster GatePlay →Blitz Tanks game coverBlitz TanksPlay →Buzzer Beater game coverBuzzer BeaterPlay →
Related Common Core standards
8.G.B.87.G.B.68.G.C.98.G.A.58.G.B.7
Measurement, Geometry, and Spatial Reasoning in other SC READY grades
Grade 3Grade 4Grade 5Grade 6Grade 7
Source and test overview
All SC READY prepOfficial test source
Reporting categories

More Grade 8 domains

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