I need help with this one to / surface area :)
2 answers:
Step-by-step explanation:
the surface area (base area plus side wall) of a cone is, when we have the radius and the length of the slanted side wall :
SA = pi×r×(r + l)
in our case here
r = half of the diameter = 12/2 = 6 m
l = 13.4 m
so, we have
SA = pi×6×(6 + 13.4) = pi×6×19.4 = 365.6813849... m²
Answer:
389.9 to 1 decimal place
If you need another explanation comment on this one
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-1 i believe, can i get brainliest?
The answer is r=16 you have to square everything
A=p (1+r/k)^kt
A=500×(1+0.02÷3)^(3×4)
A=541.50
I believe he made a 17% profit
Answer:
80%
Step-by-step explanation:
To find percent decrease (new amount/original amount)*100
(500/625)*100
=80
--
to check
625*.80
=500
or
625*80%
=500
