Question

HELP QUICKLY PLEASEE!!!!

Answer 1

(1) A

(2)C

(3)B C

Explanation:

(1)B. base=5x17=85

C.(5x4.3)/2+3x(5x17)=10.75+255=265.75

(2) A is wrong

B. surface area=2x(3.5x8)+2x(3.5x16)+2x(8x16)=56+112+256=424
`cm^(2)`

(3) A. base=(15x8)/2=60
`mm^(2)`

B. 17x6+8x6+15x6=240
`mm^(2)`

C. 240+2x60=360
`mm^(2)`

Answer 2

Explanation: