Lesson: Geometry - 23

Parallelograms

[Page 23 of 30]

A parallelogram is a quadrilateral that has two pairs of parallel sides. The opposite angles are congruent. The diagonals bisect each other.

A parallelogram is a quadrilateral with:

Opposite sides parallel
Opposite angles equal

These two properties go together: if the opposite angles are equal, the opposite sides will be parallel, and vice versa.

Adjacent angles of a parallelogram are supplementary.

∠ ADC = ∠ ABC

Since quadrilateral ABCD has opposite angles that are equal, it is a parallelogram. That means that AD is parallel to BC, AB is parallel to DC, and ∠DAB = ∠DCB.

Back Next

Next to display next topic in the chapter.

Test Prep Lessons With Video Lessons and Explained MCQ

Large number of solved practice MCQ with explanations. Video Lessons and 10 Fully explained Grand/Full Tests.

Quantitative Aptitude Reasoning English General Knowledge Picture Patterns

Jobs in Pakistan Induction process Test Prep Sections Practice MCQs Admission Tests Test Sections Success on Tests Study in USA Pak Universities Employment ISSB Preliminaries Articles and Essays Schools & Colleges Study Abroad Career News

Arithmetic Geometry Data Interpretation Problem Solving Data Sufficiency Quant. Comparison

English Vocabulary English Correction Antonyms Synonyms Analogies Fill in the Blanks Critical Reading Text Completion

Number Series Picture Pattern Critical Reasoning Analytical Reasoning

Writing

Physics Chemistry Biology Mathematics Pak Penal Code Islamic Hudood Laws

Geometry Strategies Basic Lessons Intermediate Lessons Challenging Lessons Finding Degree Measurements Angles Vertical Angles Angles Terms And Rules Alternate Angles and Tranversal Triangles Triangles Lengths of Sides Triangles Side-Angle Relationship Popular Pythagorean Ratios Triangles Area Using Ratios Perimeter of Triangle 30-60-90 Triangles Rectangles Quadrilaterals Parallelograms Squares Areas Of Quadrilaterals Areas Of Rectangles And Squares Basics Next Steps Degree 45, degree 90,degree Isosceles Triangle

MCQ with question Explanations Scholarships and Financial Aid

Lesson: Geometry - 23

Parallelograms

Test Prep Lessons With Video Lessons and Explained MCQ

Current Menu

More for You

Geometry

Arithmetic

ISSB Tests

You may be interested in

PAF College Lower Topa

Colleges in Sahiwal

World Organizations and General Issues

PPSC - Account Officer

Admission and Employment Tests

ISSB Group Planning Tasks

Career in Agriculture

NUST Engineering

About us

Quick Test Prep

Study Abroad

Lesson: Geometry - 23

Parallelograms

Test Prep Lessons With Video Lessons and Explained MCQ

Current Menu

Main Menu (Click/Tap to Open)

Current Menu

Quantitative

Verbal

Logical/Reasoning

Writing

Subjects

Geometry

More for You

Geometry

Arithmetic

ISSB Tests

You may be interested in

About us

Quick Test Prep

Study Abroad