1. A= 6 • a²
= 6 • (25)²
A= 3,750cm²
2. A= 2(wl+hl+hw)
= 2(105•8+30•8+30•105)
A= 8,460cm²
3. A= π rl + πr²
l = √r²+h²
= πr (r+√h²+r²)
= π•3•(3+√6²+3²)
A= 91.5cm²
4. A= 2πrh+ 2πr²
= 2•π•6•6+2•π6²
A = 452.39cm²
Step-by-step explanation:
yan lang po,hope it helps.
