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otez555 [7]
3 years ago
13

What is the surface area of the triangular prism shown?

Mathematics
2 answers:
padilas [110]3 years ago
4 0

The surface area of the prism is the sum of surface areas of 3 rectangles and 2 triangles.

The surface area of rectangles are

10*5=50\;cm^2,10*5=50\;cm^2,10*6=60\;cm^2.

The sum is

50\;cm^2+50\;cm^2+60\;cm^2 =160\;cm^2.

The are of each triangle is \frac{1}{2} 6*4\;cm^2.

The sum of areas of 2 triangles is 2*\frac{1}{2} 6*4\;cm^2 =24\;cm^2.

The surface area of the prism is

160\;cm^2+24\;cm^2=184\;cm^2.


Alekssandra [29.7K]3 years ago
3 0
The surface area is 184 square centimeters

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There are 31 days in january, divide 143.43 by 31 to get your answer
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3 years ago
Sasha buys two ribbons of equal length. She cuts 9 pieces of the same length, L, from the first ribbon and finds that 5 inches a
nikitadnepr [17]

Answer:

50 inches.

Step-by-step explanation:

Let the length of the each ribbon was x.

Now, she cuts 9 pieces of same length L which means total length is 9L.

Now, doing the same she was left with 5 inches of ribbon. Hence, we have

[tex[9L+5=x.....(1)[/tex]

Similarly, we can write a equation for the second situation.

2L+40=x......(2)

From equation 1 and 2,

9L+5=2L+40\\\\7L=35\\\\L=5

Plugging this value in equation 1,

9(5)+5=x\\\\x=45+5\\x=50

Therefore, the length of each ribbon when she bought them was 50 inches.

3 0
4 years ago
Find the measure of the red arc or chord in ⊙C. The measure of arc XYZ is a °
Igoryamba

The points on the red arc are points A and B

The measure of the red arc is 75 degrees

<h3>How to determine the measure of arc XYZ?</h3>

From the complete question, we have:

Angle DCE = 75 degrees

By vertical angles theorem,

Angle ACB = Angle DCE = 75 degrees

So, we have:

Angle ACB = 75 degrees

The measure of the red arc is the same as the measure of the angle ACB.

So, we have:

Red arc = 75 degrees

Hence, the measure of the red arc is 75 degrees

Read more about arc and chords at:

brainly.com/question/25871159

3 0
2 years ago
Pls help I will give brainliest
miss Akunina [59]

Answer:

Step-by-step explanation:

the distance around the figure--we need to find the perimeter

we have rectangle that has the side, 8 and 15

P(r)=2(8)+2(15)=16+30=46

we also have half of the circle with the diameter =8 and r=4

Circumference =2*3.14*r

C=2*3.14*4=25.12

we need just half of the circle 25.12/2=12.56

P figure=46+12.56=58.56

Area= rectangle=l*w=8*15=120

Area(circle)=3.14*r^2=3.14*16=50.24

half circle 50.24/2=25.12

Area figure=120+25.12=145.12

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3 years ago
The perimeter of a rectangular red sticker is 26 millimeters. It is 4 millimeters tall. How wide is it?
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