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tensa zangetsu [6.8K]
4 years ago
14

PLEASE HELP Find the surface area of the triangular prism.

Mathematics
1 answer:
ASHA 777 [7]4 years ago
4 0

Answer:

139

Step-by-step explanation:

First, find all the faces that you must find the areas of. In this case, you need to find the areas of two triangles and three rectangles.

In this triangular prism, the base is one triangle. If the area of the base is 7.75, we can assume that that holds true for both bases, and multiply 7.75 by 2 in order to find the area of both triangles.

Now find the area of each of the three rectangles by multiplying their individual heights and bases by each other. You should get 38, 47.5, and 38 as the areas of the rectangles.

Now add all the individual area's together. (They're bolded for clarity).

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Please anwer the question
guajiro [1.7K]

Answer:

$520.96

Step-by-step explanation:

This is a compound shape made of 1 rectangle and two semi circles which makes 1 full circle.

Area of Rectangle = L x W

Area of circle is =pi x radius squared

Area of Rectangle is 5ft x 4ft = 20 ft squared.

Area of circle is = 12.56 ft squared

- Diameter of the circle is 4ft, radius is 1/2 diameter

- Radius is 2ft, 2 x 2 = 4ft

(pi) 3.14 x 4ft = 12.56 ft squared.

As it is a compound shape you need to add

Area of Square + Area of circle =

20 ft squared + 12.56 ft squared =

Total Area of window is 32.56 ft squared

$16 = 1 square foot

$16 × 32.56 = $520.96

8 0
3 years ago
Read 2 more answers
What value, written as a decimal, should Lena use as the common ratio? Lena is asked to write an explicit formula for the graphe
DedPeter [7]

Answer:

a(n) = 1(2.5)^(n - 1)

Step-by-step explanation:

The geometric sequence is 1, 2.5, 6.25, 15.625, and so on; the first term is 1.  The common ratio is 2.5; each new term is 2.5 times the previous term.

The explicit formula desired is thus a(n) = 1(2.5)^(n - 1)

7 0
4 years ago
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Which equation is an example of the commutative property of multiplication?
Vikentia [17]

Answer:

the answer is (4 + 21)(3-51) = (3-51)(4+ 21)

3 0
3 years ago
The box is 7.5 inches
SVEN [57.7K]

Answer:37.5 square inches

Step-by-step explanation:

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3 years ago
Find the slope of the line that passes through the points (-12,10) and (-18,14).
9966 [12]

Answer:

-2/3

Step-by-step explanation:

To find the slope we use the formula

m= ( y2-y1)/(x2-x1)

   = ( 14-10)/(-18- -12)

   = (14-10)/(-18+12)

  = 4/-6

 = -2/3

5 0
3 years ago
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