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coldgirl [10]
3 years ago
8

Alright, so I have a question that says this:

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
5 0
Octogon
sides=4
draw lines from the outside angles to the center so they form 8 equal triangle sections
find the area of each triangle and multiply by 8

area of triangle=1/2 base times height
base=4
the height is the distance from the center of one side of the octogon, to the center=5
so area=4 times 1/2 times 5=4 times 5=10

8 triangles so 8 times 10=80
the answer is 80cm^2
the diagram included below shows area for a pentagon

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Can anyone help not understanding? And can you explain how you got it. Thanks for all your help!
Allushta [10]
No, the height wouldn't be 70 feet, it would be 80 feet.

You would get this answer by using the equation h= A/b (h meaning height)
A = area ( or 20,000)
b= base ( or 250)

Then you divide A by b:
20,000/ 250 = 
80

I hoped this helped! :)

8 0
3 years ago
Which quadrilateral(s) have sides that are referred to as bases and legs
kompoz [17]

Answer:

trapeziod

Step-by-step explanation:

A trapezoid is a quadrilateral with only one pair of opposite sides parallel. The parallel sides are called bases, and the nonparallel sides are called legs. A segment that joins the midpoints of the legs is called the median of the trapezoid

3 0
2 years ago
Suppose a house costs $270,000 appreciates by 5% each year. In about how many years will the house be worth $350000?
Vikki [24]
350000 =  270000(1.05)^n

1.05)^n = 350000/270000 = 1.296296

n =  log 1.296296 / log 1.05 = 5.3 years answer
7 0
3 years ago
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BlackZzzverrR [31]

Answer:

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Step-by-step explanation:

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5 0
2 years ago
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I'm pretty sure the answer is C

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