Bisa Bantuin Gk Ka?! Plis :(​

Jawab:

a. Sudut

LB = 180° – 55° = 125°

LC = LA = 55°

LD = LB = 125°

b. Keliling

= 12cm + 10cm + 12cm + 10cm

44cm

c. Luas

A × T

8cm × 12cm

96cm²