.gimana caranya tolong bantu jawab ya kak!!itu ada gambar soalnya

Trapesium sama kaki
tinggi = DF
DF² = AD² - AF²
= 5² - 3²
= 25 - 9
DF = √ 16 = 4 cm
DC = FE = 8 cm
Luas = (DC + AB )× DF/2
= (8 + 14 ) × 4 / 2
= (22 × 4 )/2
= 44 cm²
Keliling = AB + BC + CD + AD
= 14 + 5 + 8 + 5
= 32 cm

L = 1 per 2 x t x (AB+DC)
L = satu per dua x5x16=80:2=40cm
k =42