Answer:
678.672cm^2
Step-by-step explanation:
Given data
A cone is described by the length and radius
l=19cm
r=8cm
The formula for the surface area of the cone is
T.S.A=πrl+πr^2
Substitute
T.S.A=3.142*8*19+3.142*8^2
T.S.A=477.584+201.088
T.S.A=678.672
Hence the surface area is
678.672cm^2
Answer:
I think the answer is A to you answer
Answer:2416{APPROX}
Step-by-step explanation:
AMOUNT=290000
NO OF YEARS=10
NO OF MONTHS IN 10 YEARS=120 MONTHS.
SO AMOUNT TO DEPOSIT PER MONTH=290000/120=2416(APPROX)
The first one is the correct answer
Y-7=-3(x+2)
Actually Welcome to the Concept of the SURFACE AREAS AND VOLUMES.
Since the given section is a Sector of a Circle with length as, 8πcm .
Thus then it's folded veltically at an axis to make a cone.
since we know that, The Curved surface area of a cone is given as formula,
C.S.A = πrl
where, r = radius and l = slant height.
also 2πr = circumference of a circle,
we get as, radius = 4 cm.