Answer:
1. a
2. b
3. c
Step-by-step explanation:
Number 1 solution:
Analysis: S= 25cm
SA = 6S 2^
= 6 x 25 2^
= 6 x 6 25
= 3, 750 cm 2^
Number 2 solution:
I = Ibcm w = 9cm h = 8cm
Formula = SA = 2 ( Iw + Ih + wh)
SA = 2 X I Ib x 9 + Ib x 8 + 8 x 9)
= 2 x I 144 + 128 + 72
= 2 x 344
= 688cm 2^
Yan lang po alam ko, hope it helps!
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