Question

Завтра пробник по ОГЭ,я нифига не шарю по геометрии,подскажите какие мне нужно сделать шпаргалки,что туда вписывать,какие формулы помогут мне решить:)Заранее благодарю

Answer 1

Хехе.
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Answer 2

Tips for Creating Geometry Cheat Sheets for the OGE Exam

Preparing cheat sheets can be a helpful way to organize and consolidate important information for the OGE geometry exam. Here are some tips on what to include in your cheat sheet and which formulas can assist you in solving geometry problems:

1. Basic Definitions and Properties: - Include definitions of key geometric terms such as points, lines, angles, triangles, quadrilaterals, circles, etc. - Note down important properties of these geometric figures, such as the sum of angles in a triangle, properties of parallel lines, properties of congruent triangles, etc.

2. Formulas for Perimeter and Area: - Include formulas for calculating the perimeter and area of common geometric figures, such as triangles, rectangles, squares, circles, etc. - For example, the formula for the area of a triangle is A = (1/2) * base * height, and the formula for the circumference of a circle is C = 2 * π * radius.

3. Pythagorean Theorem: - The Pythagorean theorem is a fundamental concept in geometry. - Include the formula a^2 + b^2 = c^2, where a and b are the lengths of the legs of a right triangle, and c is the length of the hypotenuse.

4. Trigonometric Ratios: - If you are studying trigonometry as part of your geometry exam, include the definitions of sine, cosine, and tangent. - Also, include the formulas for calculating these ratios in a right triangle: sinθ = opposite/hypotenuse, cosθ = adjacent/hypotenuse, tanθ = opposite/adjacent.

5. Similarity and Congruence: - Include properties and theorems related to similarity and congruence of geometric figures. - For example, the Side-Angle-Side (SAS) and Angle-Angle (AA) criteria for triangle congruence, and the properties of similar triangles (e.g., corresponding angles are congruent, corresponding sides are proportional).

6. Coordinate Geometry: - If coordinate geometry is part of your exam, include formulas for calculating the distance between two points, the midpoint of a line segment, and the slope of a line.

Remember, creating a cheat sheet is not a substitute for understanding the concepts and practicing problem-solving. It is meant to serve as a quick reference guide during the exam. Make sure to review and understand the concepts thoroughly before relying solely on the cheat sheet.

Good luck with your OGE geometry exam!