Answer:
I need to know what ... means.
Step-by-step explanation:
Answer:
401.92 in²
Step-by-step explanation:
S.A. = 2πr²+2πrh
S.A. = 2π4²+2π4·12
S.A. = 100.48 + 301.44
S.A. = 401.92 in²
1st one
√4*10 = 2√10
answer
D. 2√10
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2nd pic
√3*48 = √144 = 12
answer
A. 12
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3rd pic
√5*125 = √625 = 25
answer
B. 25
Answer:
108
Step-by-step explanation:
You start by finding the area of the trapezoid, which is ((3+5)/2) 3 = 12, then you multiply 12 by 9 which is 12*9 = 108
The volume of the triangular prism is 420
