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OleMash [197]
3 years ago
6

The volume of this triangular prism is 247.5 cubic inches. What is the value of t?

Mathematics
2 answers:
elixir [45]3 years ago
8 0

Volume of a triangle is 1/2 base x height x length.

Using the given information we can find t:

247.5 = 1/2(5)(t)(11)

Simplify:

247.5 = 2.5(t)(11)

247.5 = 27.5t

Divide both sides by 27.5:

t = 247.5 / 27.5

t = 9

Oduvanchick [21]3 years ago
3 0

Answer:

<h2>t = 9in</h2>

Step-by-step explanation:

The formula of a volume of a prism:

V=BH

<em>B</em><em> - area of a base</em>

<em>H</em><em> - height</em>

In the base is the triangle.

The formula of an area of a triangle:

A=\dfrac{bh}{2}

<em>b</em><em> - base</em>

<em>h</em><em> - height</em>

We have <em>V = 247.5 in³, b = 5 in, H = 11 in</em> and <em>h = t</em>.

Therefore:

B=\dfrac{5t}{2}

Put them to the formula of a volume:

247.5=\left(\dfrac{5t}{2}\right)(11)

247.5=\dfrac{55t}{2}

247.5=27.5t              <em>divide both sides by 27.5</em>

9=t\to t=9\ in

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