What is the surface area

Mathematics

1 answer:

arlik [135]3 years ago

6 0

Answer:

Step-by-step explanation:

We have 4 congruent triangles.

The formula of an area of a triangle:

$A_\triangle=\dfrac{1}{2}bh$

b - base

h - height

We have b = 5in and h = 6in. Substitute:

$A_\triangle=\dfrac{1}{2}(5)(6)=(5)(3)=15\ in^2$

The Surface Area of the triangular pyramid:

$S.A.=4\cdot15\ in^2=60\ in^2$

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Naddika [18.5K]

Answer:

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Step-by-step explanation:

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2 years ago

Can someone please explain how to do these?

Pani-rosa [81]

Answer:

<u>First question answer:</u> The limit is 69

<u>Second question answer:</u> The limit is 5

Step-by-step explanation:

For the first limit, plug in $x=8$ in the expression $(9x-3)$ , that's the answer for linear equations and limits.

So we have:

$9x-3\\9(8)-3\\72-3\\69$

The answer is 69

For the second limit, if we do same thing as the first, we will get division by 0. Also indeterminate form, 0 divided by 0. Thus we would think that the limit does not exist. But if we do some algebra, we can easily simplify it and thus plug in the value $x=1$ into the simplified expression to get the correct answer. Shown below: