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FrozenT [24]
3 years ago
10

Can somebody help me out pleaseeee ??

Mathematics
2 answers:
frutty [35]3 years ago
8 0

answer : 54cm^2

pythagorus’ theorum : a^2 + b^2 = c^2

so 9^2 + x^2 = 15^2, x being the missing length

work out x ...

81 + x^2 = 225

x^2 = 144

x = 12

area of a triangle : 0.5 x base x height

so 0.5 x 9 x 12 = 54

nexus9112 [7]3 years ago
5 0

Answer:

67.5cm^2

Step-by-step explanation:

area of a triangle is 0.5xaxb

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45 Divided by 3 equal 15

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The volume of a cone is 3πx3 cubic units and its height is x units. Which expression represents the radius of the cone’s base, i
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Answer:

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Step-by-step explanation:

<u>The Volume of a Cone</u>

The volume of a cone of radius r and height h is:

\displaystyle V=\frac{1}{3}\pi hr^2

We are given the volume of a cone is

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Equating:

\displaystyle \frac{1}{3}\pi hr^2=3\pi x^3

Multiplying by 3:

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Simplifying by pi:

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Since h=x:

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Dividing by x:

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5 0
3 years ago
Read 2 more answers
What's 6 / 3 and 13 divided by 1at 3
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Step-by-step explanation:

5 0
4 years ago
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3 years ago
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