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www.shmoop.com/quadrilaterals/parallelograms-examples.html

Since FGHJ is a parallelogram, we can use the fact that consecutive angles in a parallelogram are supplementary to find the measure of ∠3. Supplementary angles add up to 180°, which means that: m∠3 + m∠4 = 180° m∠3 + 90 = 180° m∠3 = 90° Now we can use the fact that opposite angles in a parallelogram are congruent.

www.analyzemath.com/Geometry/parallelogram_problems.html

In the parallelogram below, BB' is the angle bisector of angle B and CC' is the angle bisector of angle C. Find the lengths x and y if the length of BC is equal to 10 meters. Solution to Problem 3: Note that the internal angles B and C are supplementary angles and their sum is equal to 180 degrees.

www.khanacademy.org/math/basic-geo/basic-geo-area-and-perimeter/parallelogram...

Practice finding the area of parallelograms given base and height. If you're seeing this message, it means we're having trouble loading external resources on our website. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

www.hackmath.net/en/word-math-problems/parallelogram

Parallelogram - math word problems Garden exchange The garden has the shape of a rectangular trapezoid, the bases of which have dimensions of 60 m and 30 m and a vertical arm of 40 m.

www.mathwarehouse.com/geometry/quadrilaterals/parallelograms

A parallelogram is a quadrilateral made from two pairs of intersecting parallel lines . There are several rules involving: the angles of a parallelogram. the sides of a parallelogram. the diagonals of a parallelogram. Rule 1: Opposite sides are parallel Read more. Rule 2: Opposite Sides are Congruent Read more.

www.dummies.com/education/math/geometry/how-to-do-a-parallelogram-proof

A good way to begin a proof is to think through a game plan that summarizes your basic argument or chain of logic. The following examples of parallelogram proofs show game plans followed by the resulting formal proofs. Proof 1 Here’s a game plan outlining how your thinking might go: Notice the congruent triangles. Always […]

www.ce.siue.edu/examples/Worked_examples_Internet_text-only/Data_files-Worked_Exs-Word...

2.1 Adding Forces by the Parallelogram Law Example 1, page 1 of 4 1. Determine the magnitude and direction of the resultant of the forces shown. 30° 150 N 200 N 30° 200 N 150 N 30° Construct a parallelogram by drawing two lines. Each line starts at the tip of one vector Tip and is parallel to the other vector. Parallel Tip 1

www.varsitytutors.com/.../quadrilaterals/plane-geometry/geometry/parallelograms

Explanation: . In a parallelogram, consecutive angles are supplementary (i.e. add to ) and opposite angles are congruent (i.e. equal).Using these properties, we can write a system of equations. 1.

tutor4physics.com/parallelogram-law-of-vector-addition.html

Parallelogram law of vector addition Questions and Answers . Note: vectors are shown in bold. scalars are shown in normal type. The diagram above shows two vectors A and B with angle p between them.. R is the resultant of A and B. R = A + B. This is the resultant in vector

byjus.com/maths/parallelogram

Example- Find the area of a parallelogram whose base is 5 cm and height is 8 cm. Solution-Given, Base = 5 cm and Height = 8 cm.We know, Area = Base x Height. Area = 5 × 8 Area = 40 Sq.cm Example: Find the area of a parallelogram having length of diagonals to be 10 and 22 cm and an intersecting angle to be 65 degrees.