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3 years ago

(Very easy) Find the surface area of this figure

Mathematics

1 answer:

Nataly_w [17]3 years ago

5 0

The surface area of the two triangles is 12 cm^2.

3*4=12

The surface area of the bottom rectangle is 8 cm^2.

4*2=8

The surface area of the rectangle that is on the left side of the figure is 6 cm^2.

3*2=6

The surface area of the rectangle that is on the top side of the figure is 10 cm^2.

To find the third side of the triangle, use the Pythagorean theorem.

3^2+4^2=h^2

9+16=25

The third side of the triangle is 5 cm.

The surface area of the whole figure is 36 cm^2.

12+8+6+10=36

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Plz answer the question attached

Agata [3.3K]

Answer:

y = -2x + 5

Step-by-step explanation:

To find the slope, you need to pick two points and put into the slope formula. It doesn't matter which ones, you will get the right answer regardless. I used (-3, 11) and (2, 1).

$m=\frac{y_{2} -y_{1} }{x_{2} -x_{1} } \\m=\frac{11 -1 }{-3 -2 } \\m=\frac{10 }{-5 } \\m=-2$

Now that you have the slope, you can plug it into point-slope form to find the equation in slope-intercept form. You will also need to plug one of the given points. Again, it doesn't matter which one.

$y-y_{1}=m(x-x_{1} )\\y-1=-2(x-2)\\y-1=-2x+4\\y=-2x+5$

4 0

3 years ago

What is the slope of the line shown below? <br><br> A. 2<br> B. -1/2<br> C. -8/5<br> D. -2

fiasKO [112]

D -2 is correct answer

6 0

3 years ago

Madeline uses a mirror on the ground to measure the height of her school building. She walks a distance of 9.5 m from the buildi

Vadim26 [7]

The height of the building is 5.33m.

<h3>How to calculate the height?</h3>

The question is to calculate the height of the building.

Based on the information given, the height will be:

Madeline eye height/Distance from X = Height of building/Building distance from X

1.55/2.75 = x/9.45

x = (1.55 × 9.45)/2.75

x = 5.33 m

Learn more about height on:

brainly.com/question/983412

#SPJ1

3 0

2 years ago

Carlo buys $14.40 worth of grapefruit. Each grapefruit costs $0.80.<br> how many does he have

gtnhenbr [62]

Answer:

Mate, just divide...its that simple..

$14.40 divided by 0.80= 18

ANSWER: 18

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

One week, Wyatt earned $70.40 at his job when he worked for 4 hours. If he is paid the same hourly wage, how many hours would he

Anastaziya [24]

Answer: 8 hours

Step-by-step explanation: he gets 70.40$ to work for 4 hours so you'll have to multiply 4 by 70.40 to represent it's doubling to 8 and you'll get 281.60

70.40x4=281.60

so add this 4 to the other 4 it makes 8 because that's how much it would take to get there 4 steps up to really =8

i'm sooo dificult

4 0

3 years ago