Answer:
Step-by-step explanation:
22. Area = L x B
Area = (5a^2b^4) x (3ab^2)
Area = 15a^3b^6
Perimeter = L + B
Perimeter = (5a^2b^4) + (3ab^2)
Preimeter = 5a^2b^4 + 3ab^2
23. Area = 1/2 bh
Area = 1/2 (3mn^2) x (4m^2)
Area =6m^3n^2
Perimeter = L + B + H
Perimeter = 3mn^2 + 4m^2 + 7mn^2
Perimeter = 10mn^2 + 4m^2
