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Nana76 [90]
3 years ago
10

What is the area of an equilateral triangle with the base of 8 cm? Round your answer to the hundredths place. ​

Mathematics
2 answers:
Lady_Fox [76]3 years ago
5 0

Step-by-step explanation:

\frac{{x}^{2} \times  \sqrt{3}}{4}

for x=8, area=16*root(3)

Contact [7]3 years ago
5 0

Answer:

Let's find the height:

Half of 8 is 4.

4^2 + 8^2 = 80

80(lets find the square root of 80): 8.944 ^2 = 79.995136 close enough to 80

Your new height is 8.944.

8 x 8.944 = 71.552, 71.552 x 1/2 (basically just dividing by 2) = 35.776 rounded would be = 35.78 cm^2

Formula of area of a triangle:

B(base)H(height) x 1/2(basically just dividing by 2)

In this case 8 is your base and 8.944 is your height.

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Yakvenalex [24]
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For the second part:

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The amounts are different because the cost of the total purchase is different than the cost of each element that makes up the total purchase.

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Read 2 more answers
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