Q: If you know the lenghts of two opposite sides of a parallelogram can I find the perimeter?

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Since in a parallelogram, two opposite sides are congruent, then the perimeter of the given parallelogram is 30 in [2(7 + 8)in].

A parallelogram has 2 sets of parallel sides. The opposite sides are equal in length and opposite angles are equal. Examples of parallelograms are squares, rectangles and rhombuses. You can find the perimeter of a parallelogram by doubling the base+side length.

The opposite sides of a parallelogram are both parallel and equal.

The opposite sides of a parallelogram are parallel lines and a parallelogram is a 4 sided quadrilateral

It is the sum of its 4 sides

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parallelogram

Since in a parallelogram, two opposite sides are congruent, then the perimeter of the given parallelogram is 30 in [2(7 + 8)in].

No. Adjacent sides, yes. (Twice the sum)

Since the opposite sides are congruent: perimeter = 2(2) + 2(3) = 10

A parallelogram is a "sat-on" rectangle; opposite sides are equal in length → perimeter = 7 + 11 + 7 + 11 inches = 36 inches.

Since a parallelogram has opposite sides parallel and EQUAL, perimeter is 12+12+5+5 = 34 feet

A parallelogram has 2 sets of parallel sides. The opposite sides are equal in length and opposite angles are equal. Examples of parallelograms are squares, rectangles and rhombuses. You can find the perimeter of a parallelogram by doubling the base+side length.

If two polygons are similar then the ratio of their perimeter is equal to the ratios of their corresponding sides lenghts?

The opposite sides of a parallelogram are parallel

The perimeter of a parallelogram is the distance around the outside of the parallelogram. A parallelogram has four sides with opposite sides being congruent. The formula for finding the perimeter is Side A + Side B + Side A + Side B. This could also be stated as 2*Side A + 2*Side B or 2*(Side A + Side B).

A parallelogram has opposite equal parallel sides

The opposite sides of a parallelogram are both parallel and equal.