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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.

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.

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