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malfutka [58]
3 years ago
13

Find the total surface area of the triangular pyramid. Each of the faces (sides) has an area of 50.5 square inches.

Mathematics
1 answer:
mylen [45]3 years ago
5 0
By definition we have:
 A triangular pyramid (also called tetrahedron) is a polyhedron whose surface is formed by a base that is a triangle and triangular lateral faces that converge in a vertex that is called apex (or apex of the pyramid).
 It will be composed, therefore, by 4 faces, the triangular base and three lateral triangles that converge at the vertex.

 Thus, the surface area is:
 As = 4 * (50.5) = 202 in ^ 2
 Answer:
 The total surface area of the triangular pyramid is:
 202 in ^ 2
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bixtya [17]

<u>Answer:</u>

-2/3

<u>Step-by-step explanation:</u>

We are to find the slope of a line which is perpendicular of a line with an equation 2y=3x-1.

We know that the slope of line which is perpendicular to another line is the negative reciprocal of that perpendicular line.

So writing the given equation of a line in the slope intercept form:

2y=3x-1 ---> y=\frac{3}{2} x-\frac{1}{2}

Here the slope of this line is \frac{3}{2} so the slope of a line which is perpendicular to the given line will be -\frac{2}{3}.

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3 years ago
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60f=86 and I need to divide 60 from both sides but I don’t know how
White raven [17]

Answer:

f = 43/40 or 1 13/30

Step-by-step explanation:

60f=86

Divide each side by 60

60f/60=86/60

f = 86/60

Divide the top and bottom by 2

f = 43/30 or as a mixed number 1 13/30

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3 years ago
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Answer:

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3 years ago
a primary school budgeted for $16200.00 to renovate the school the school raised 25%and applied for the rest of the amount from
frutty [35]

Answer:

Step-by-step explanation:

a primary school budgeted for $16200.00 to renovate the school the school raised 25%and applied for the rest of the amount from a bank how much did the school apply from the bank? ​

a primary school budgeted for $16200.00 to renovate the school the school raised 25%and applied for the rest of the amount from a bank how much did the school apply from the bank? ​

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3 years ago
Change the quadratic to vertex form.<br>p(x)=2x² – 16x +7<br>​
irina1246 [14]

Answer:

Vertex form:

p(x)= 2(x - 4)^2 - 25

Step-by-step explanation:

p(x)=2x² – 16x +7

a = 2, b = -16 and c = 7

x = -b/2a

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= 4

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so

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