Answer:
GCF = 4
Step-by-step explanation:
Factors of 20 = 1,2,4,5,10 and 20
Factors of 36 = 1,2,3,4,6,9,12,18 and 36
Greatest factor which is common = 4
8cm²
Step by step explanation:
A= ½×4cm×4cm
A= ½×16cm²
A= 8cm²
Answer: oh