<em>Greetings from Brasil...</em>
isolating a:
(a + b + c)/3 = z
(a + b + c) = 3z
Answer:
26.635
Step-by-step explanation:
6.28, the area of the biggest circle
2.355, the area of the little circle
18, the area of rectangular
6.28+2.355+18
Answer: secend day