Jawab nomor 1,2dan , 5 aja kak yg benar jangan asal​

Nomor 1

kll = 10 + 10 + 12 = 32 cm (10 dihasilkakn karena segitiga sama kaki)

luas = √10² – 6² = √64 = 8cm t

luas = a t / 2

luas = 6 . 12 / 2

luas = 48cm²

Nomor 4

36 = (x + 7) + (x + 4) + ( x + 1)

36 = 3x + 12

36 -12 = 3x

24 = 3x

24/3 = x

8cm = x

Sisi AB

(x + 4) =

8 + 4 = 12cm