MCAP Geometry Congruence. Practice it free.

Measures transformations, congruence via rigid motions, geometric theorems, and constructions. This Geometry reporting domain maps to 2 practice skills and 8 representative questions from the playable bank.

GeometryContent Subclaim2 mapped skills
What the test measures

Congruence skills

  1. G.CO.A Experiment with transformations in the plane.

  2. G.CO.B Understand congruence in terms of rigid motions.

  3. G.CO.C Prove geometric theorems.

  4. G.CO.D Make geometric constructions.

Standards basis

Maryland College and Career Ready Standards for Mathematics (MCCRSM) — Maryland

How the MCAP reports it

MCAP is Maryland's statewide successor to PARCC, built on the Maryland College and Career Ready Standards for Mathematics (which mirror CCSS-M) — it is not a Smarter Balanced administration despite the claims-style family resemblance. Each grade/course High Level Blueprint (September 2022) organizes the assessment into three subclaims: Content (23-24 one-point machine-scored items, listed per domain/conceptual category as MCCRSM cluster headings), Reasoning (6 items), and Modeling (6 items), the latter two defined by per-grade evidence statements and including constructed-response items. Cluster headings are transcribed verbatim from the blueprints, including their minor typographical deviations from the parallel CCSS-M headings; two evident misprints are normalized (a duplicated sentence fragment on 4.OA.C, and the domain codes printed as G.P.E / T.TF for G.GPE / F.TF). Since March 2025, grade 6-7 students enrolled in a high-school mathematics course may take the corresponding MCAP course assessment instead of the grade-level test.

Blueprint & weighting

Each High Level Blueprint (September 2022) publishes per-domain operational item counts. Content Subclaim (1-point machine-scored items): Grade 3 — OA 7, NBT 2, NF 7, Measurement 5, Geometry 2 (23 items); Grade 4 — OA 4, NBT 5, NF 10, Measurement 3, Geometry 1 (23); Grade 5 — OA 2, NBT 6, NF 9, Measurement 4, Geometry 2 (23); Grade 6 — RP 3, NS 8, EE 8, Geometry 2, SP 2 (23); Grade 7 — RP 8, NS 4, EE 5, Geometry 3, SP 3 (23); Grade 8 — NS 2, EE 10, Functions 5, Geometry 4, SP 2 (23); Algebra I — Number and Quantity 1, Algebra 12, Functions 9, Statistics 2 (24); Geometry — G.CO 7, G.SRT 8, G.C 3, G.GPE 3, G.GMD 1, G.MG 1 (23); Algebra II — Number and Quantity 3, Algebra 8, Functions 11, Statistics 1 (23). Every assessment adds 6 Reasoning Subclaim and 6 Modeling Subclaim operational items — four 1-point machine-scored each, plus two constructed-response items (two 3-point in grades 3-4; one 3-point and one 4-point in grades 5-8; two 4-point in Algebra I, Geometry, and Algebra II) — so a form carries 35 operational items (36 for Algebra I).

Try it now

8 free questions · 0/0 correct

Practice playmedium

In isosceles △DEF\triangle DEF, the vertex angle measures (4x+10)°(4x+10)° and each base angle measures (65−x)°(65-x)°. What is the measure of each base angle?

The three angles sum to 180°180°: 2(65−x)+(4x+10)=1802(65-x)+(4x+10)=180, so 140+2x=180140+2x=180 and x=20x=20. Each base angle is 65−20=45°65-20=45°.

Practice playeasy

Which transformation moves every point of a figure exactly 66 cm in the same direction?

A translation is a rigid transformation that moves every point of a figure the exact same distance in the same direction. Since all points in the image remain equidistant from the points in the preimage, the figure remains congruent. In this example, that distance is 66 cm.

Practice playmedium

In △GHI\triangle GHI, m∠G=(2x+5)°m\angle G=(2x+5)°, m∠H=(3x+5)°m\angle H=(3x+5)°, and m∠I=(x+50)°m\angle I=(x+50)°. What is the measure of the largest angle of the triangle?

The angles sum to 180°180°: (2x+5)+(3x+5)+(x+50)=180(2x+5)+(3x+5)+(x+50)=180, so 6x+60=1806x+60=180 and x=20x=20. The angles are 45°45°, 65°65°, and 70°70°, so the largest is 70°70°.

Practice playeasy

Which transformation maps each point of a line segment over a perpendicular bisector so that they map onto the same line segment, keeping the image the same?

A reflection is a rigid transformation that maps the points from a preimage, over a line of reflection, to the points of an image that are equidistant to the line. In this example, that line is the perpendicular bisector of a line segment from a point to its image, so the points map onto the same line segment, keeping the image the same.

Practice playeasy

In parallelogram PQRSPQRS, m∠P=(4x+6)°m\angle P=(4x+6)° and m∠Q=(2x+24)°m\angle Q=(2x+24)°. What is the measure of ∠P\angle P?

Consecutive angles are supplementary: (4x+6)+(2x+24)=180(4x+6)+(2x+24)=180, so 6x+30=1806x+30=180 and x=25x=25. Then m∠P=4(25)+6=106°m\angle P=4(25)+6=106°.

Practice playeasy

Which transformation creates an image that is congruent to its preimage, but is located at a different angle around a center point?

A rotation is a rigid transformation that turns a figure around a fixed point, called a center of rotation, by a specific angle in a specific direction. All points remain equidistant from the center of rotation, keeping the image congruent to the preimage. In this example, the image is congruent to the preimage and is located at a different angle around that center point.

Practice playeasy

Each interior angle of rectangle WXYZWXYZ measures (3x−12)°(3x-12)°. What is the value of xx?

Every interior angle of a rectangle measures 90°90°, so 3x−12=903x-12=90 and x=34x=34.

Practice playeasy

Which transformation never keeps a point in the same place?

A translation is a rigid transformation that moves every point of a figure the exact same distance in the same direction. Since all points in the image remain equidistant from the points in the preimage, the figure remains congruent. In this example, a point is never kept in the same place.

Keep practicing

Turn congruence into game time.

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