Answer:
D
Step-by-step explanation:
Because it's (8x)^2, that means that 8x has been substituted for s. You get:
8x = s; s = sidelength.
You use the transitive property of equality and get:
8x = sidelength
(i.) CA = πrl
CA = π (5*13)
CA = 65π
(ii.) TA = πrl + πr^2
TA = 65π + π (5^2)
TA = 65π + 25π
TA = 90π
(iii.) To get the height of the cone, you have to use the Pythagorean theorem. Plug in the radius for a and the slant height for c.
a^2 + b^2 = c^2
5^2 + b^2 = 13^2
25 + b^2 = 169 Height = 12
b^2 = 144
b = 12
(iv.) v = (1/3)πr^2h
v = (1/3)π(5^2)*12
v = (1/3)π(25*12)
v = (1/3)π*300
v = 100π
Congratulations on posting the figure.
Area is (1/2) * base * height, here
Area = (1/2) (21) (18) = 9*21 = 189
Answer: 189 sq yds
Answer:
105
Step-by-step explanation:
theres 3 feet in a yard
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Step-by-step explanation:
