Respuesta :

crystal3603813

Answer:

a) 29.4 cm²

b) 23 cm²

Step-by-step explanation:

a) P = 2l + 2w

   P = 2 (8.2) + 2 (6.5)

   P = 16.4 + 13 = 29.4

b) P = s + s + s

   P = 7.3 + 6.1 + 9.6 = 23

The perimeter of parallelogram is 30 and 23 cm

What is Perimeter of Parallelogram?

The perimeter of a parallelogram is the length of its outline and hence it is equal to the sum of all its sides.

The perimeter of a parallelogram can be found in the following cases:

  • When two adjacent sides are known.
  • When one side and diagonals are known.
  • When base, height, and any angle are known.

Here are the formulas to find the perimeter of a parallelogram in each of these cases:

  • P = 2 (a + b), where a, b are the adjacent sides of a parallelogram
  • P = 2a + √(2x2 + 2y2 - 4a2), where a is the a side of the parallelogram, and x, y are its diagonals.

Given:

sides are 8.5 cm and 6.5 cm

Perimeter of parallelogram

= 2 ( 8.5 + 6.5)

= 2 (15)

=30 cm

Perimeter of triangle

= s+ s+ s

=7.3 + 6.1 + 9.6

= 23 cm

Learn more about perimeter here:

https://brainly.com/question/6465134

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