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Tems11 [23]
2 years ago
5

GEOMETRY- FIND POLYGON AREA

Mathematics
1 answer:
Dvinal [7]2 years ago
5 0

Answer:

Step-by-step explanation:

The area of a regular polygon is

A=\frac{1}{2}ap where a is the apothem and p is the perimeter. Perimeter is simple: just count the number of sides the polygon has and multiply it by 3 (the length of one side).

p = 3(9) is 27 inches for the perimeter.

We have what we need now to find the area:

A=\frac{1}{2}(4.1)(27) and

A=\frac{1}{2}( 110.7) so

A = 55.35 square inches

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The perimeter of a parallelogram is 180 cm. One side exceeds the other by 10 cm. What are the lengths of adjacent sides of the p
Georgia [21]

Answer:

one side is 40 other is 50

Step-by-step explanation:

perimeter=180cm

let one side=length=x

Acc. to condition:

other side=width=x+10 (one side exceed other by 10)

perimeter= 2(length+width)

subtitue all values given above:

180=2(x+x+10)

180=2(2x+10)

2x+10=180/2

2x+10=90

2x=90-10

2x=80

x=40

now

lenght=x=40cm

width=x+10=40+10

width=50cm

8 0
3 years ago
2) Steve drives 78 miles on 3 gallons of gas. Find the miles per gallon.
oksano4ka [1.4K]
1st question: 26 miles per gallon

2nd question: 4 miles per hour

3rd question: The 5 bags of pretzels is the lower unit price.

Hope this helps!
4 0
3 years ago
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ehidna [41]
The answer is c = 11mm
3 0
3 years ago
Solve (x +1 < 4) n ( x - 8 > -7)?​
Anna007 [38]

X<3 or X>1

move constant to the right side and change the sign

8 0
3 years ago
C is the midpoint of AB . AC=2x +2 and AB=8x. Set up an equation and showing all steps, solve for x and length CB.
olga55 [171]

See the attached drawing for a visual.

Since we know that AC = CB is half the length of AB, we can write that in equation form. The goal is to determine the length of CB = AC = 2x+2

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2x+2 = 4x

2x = 2

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Now that we know the value of x, we can find the value of CB = 2x+2:

CB = 2x+2

CB = 2(1)+2

CB = 4


8 0
3 years ago
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