HELP ASAP PLEASE THIS IS VERY IMPORTANT EXPLAIN FOR BRAINLIST AND GET IT RIGHT FOR BRAINLIST TY!

Answer:
6squared+6squared+12squared=216 then double 216 hope this is it!
Step-by-step explanation:
Answer:
b) 180 cm²
Step-by-step explanation:
find area of square = 6 x 6 = 36
find area of one triangle = 1/2(6)(12) = 3(12) = 36
There are 4 congruent triangles, so 36 x 4 = 144
36 + 144 = 180