Answer:
No
Step-by-step explanation:
5(3+2) = 5(5) = 25
5.3 + 5.2 = 10.5
25 doesn't equal 10.5 therefore 5(3+2) isn't equivalent to 5.3 + 5.2
1680
280 x 6 = 1680
2×π×(1/2)L×L+2×π×((1/2)L)^2
perimeter of cross-section × height +2× area of cross-section
