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3 years ago

What is the area of the equilateral triangle? Round to the nearest square centimeter. Do not include units

Mathematics

2 answers:

ziro4ka [17]3 years ago

5 0

The answer should be around 28 square centi. rounding from about 27.71

swat323 years ago

3 0

Area of an equilateral triangle is:

$\frac{ \sqrt{3}}{4} 8^{2}=16\sqrt{3}=27.7128≈28$

so your answer is 28

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3 years ago

Find the circumference of a circle that has an area of 452.16 square meters. (Use 3.1416 as the value of π.)

laila [671]

$\bf \textit{area of a circle}\\\\
A=\pi r^2\quad 
\begin{cases}
r=radius\\
-----\\
A=452.16
\end{cases}\implies 452.16=\pi r^2\implies \cfrac{452.16}{\pi }=r^2
\\\\\\
\boxed{\sqrt{\cfrac{452.16}{\pi }}=r}\\\\
-------------------------------\\\\
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3 years ago

Triangle Congruence:

Serga [27]

Where are the triangles so I can compare to find the triangle congruence?

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3 years ago

Read 2 more answers

Unit 3, Lesson 7

aksik [14]

Answer:

Find the complete table in attached file.

Step-by-step explanation:

Find the Incomplete table in attached file

Given:

A car travels 55 miles per hour for 2 hours.

So the speed of the car 55 miles per hour is constant for 2 hours.

Using speed formula.

$Speed=\frac{distance}{time}$

Second row.

From the second row of the table $time = \frac{1}{2}=0.5\ sec$ and speed is constant $speed = 55\ mi/hr$ , so we need to find only distance.

$Speed=\frac{distance}{time}$

$55=\frac{distance}{0.5}$

$distance = 55\times 0.5$

$distance = 27.5\ mi$

Third row.

From the third row of the table $time =1\frac{1}{2}=\frac{3}{2} = 1.5\ sec$ and speed is constant $speed = 55\ mi/hr$ , so we need to find only distance.