tolong ya kak,pake cara ya kak

No 1A
(32÷2)+(-12×(-4))
= 16 + 48
= 768

No 1B
(-5)×(-8)+(12-(-7))
= 40 + 19
= 59

No 2
Luas persegi panjang = Luas persegi
= 49m × 25m
= 1225m²

Sisi persegi
= √1225m²
= 35m

Keliling persegi
= 4(35m)
= 140m

1a.)
(32÷2)+(-12×(-4))
= 16 + 48
= 768

1b.)
(-5)×(-8)+(12-(-7))
= 40 + 19
= 59

No 2
Luas persegi panjang = Luas persegi
= 49m × 25m
= 1225m²
Sisi persegi
= √1225m²
= 35m
jadi ,
Keliling persegi
= 4(35m)
= 140m