Question

please answer c and d with working
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Answer 1

Answer:

c)1600m^2 d) 10m

Step-by-step explanation:

c) perimeter of square = 4s

4s=160m

s = 160/4

s=40m

area of square = s^2

= 40^2

=1600m^2

d) volume of cuboid = l * b* h

280m^3=7m * 4m*h

280/7=4h

40/4=h

10m = h

Answer 2

Step-by-step explanation:

see the attachment for answers