Answer :
Base:
12*12= 144 cm^2
Triangle sides:
12*8/2= 48 cm^2 each
Multiply by 4 because there are four of them
48*4= 192 cm^2
Add the base
192+144=336 cm^2
Final answer: 336 cm^2
12*12= 144 cm^2
Triangle sides:
12*8/2= 48 cm^2 each
Multiply by 4 because there are four of them
48*4= 192 cm^2
Add the base
192+144=336 cm^2
Final answer: 336 cm^2