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AfilCa [17]
2 years ago
7

If the perimeter of an equilateral triangle is 60 cm, then what is its area?

Mathematics
2 answers:
Tpy6a [65]2 years ago
5 0
P=60/3
=20
a+b=c
C-b=a
40p-100=root 300
100root3
photoshop1234 [79]2 years ago
3 0
Hello! The Perimeter is = 60cm
1 side = 60/3 = 20 cm
√s(s-a)(s-b)(s-c)s(s−a)(s−b)(s−c)

s = 30

√30(30-20)(30-20)(30-20)

=√30×10×10×10=√30000cm²

The Area is = 100√3 cm²
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2 years ago
A chicken farmer also has cows for a total of 30 animals, and the animals have 66 legs in all. How many chickens does the farmer
hammer [34]

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Step-by-step explanation:

A chicken farmer also has cows for a total of 30 animals

Both animals have a total of 66 legs

Let a represent the number of chicken

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Since a chicken has only two legs and a cow has four leg then, the expression can be represented as

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From equation 1

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3 years ago
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kvasek [131]

Answer:

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4 0
1 year ago
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