Finding perimeter of 8-year-old parallelogram If AB = 4, BC = 5, de = 1.5, what is the perimeter of efcd?

Finding perimeter of 8-year-old parallelogram If AB = 4, BC = 5, de = 1.5, what is the perimeter of efcd?

(where de = 1.5, OE = 1.5)
A quadrilateral ABCD is a parallelogram
∴BO=DO,AO=CO
Easy syndrome △ AOE ≌ △ COF
∴OE=OF,CF=AE
The perimeter of quadrilateral efcd = CF + OE + of + de + CD = CD + AD + 2of = 4 + 5 + 3 = 12

A parallelogram has a base of 12 meters, a height of 7 meters and a height of 10 meters. Find the perimeter of the parallelogram

Area = 12 × 7 = 84m and 178;
The other side = 84 △ 10 = 8.4m
Perimeter = 2 × (12 + 8.4) = 40.8m

The bottom of a parallelogram is 5 decimeters, the height on the bottom edge is 4.8 decimeters, and the height on the other bottom edge is 4 decimeters

Let the other side be long X
5×4.8 = 4×x
x = 6
Perimeter: 2 × (5 + 6) = 22 decimeters