tolongg dong kakkk a. 48cm b. 42cm c. 40cm d. 36cm pake cara jalannya dong kakk

Panjang BC = t

10 x 10 - 8 x 8 = t x t
100 - 64 = t x t
36 = t x t
t = 6 cm

Panjang BC = 6 cm

Keliling:
= 8 + 12 + 10 + 6
= 36 cm