3 years ago

The number of lines of symmetry of an equilateral triangle is _______.

Mathematics

1 answer:

Reika [66]3 years ago

8 0

Answer:

An equilateral triangle has three lines of symmetr

Step-by-step explanation:

letter d

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In Triangle JKL, <J is congruent to <L<br><br>What is the measure of <L

Yakvenalex [24]

Answer:

Step-by-step explanation:

∠K = 180 - 67.8

= 112.2°

∠J = ∠L =<u> 180 - 112.2</u>

∠J = ∠L = 33.9°

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3 years ago

A cylindrical rod of steel (E = 207 GPa, 30 * 106 psi) having a yield strength of 310 MPa (45,000 psi) is to be subjected to a l

sineoko [7]

Answer:9.477 mm

Step-by-step explanation:

Given

E=207 GPa

Yield Strength $(s_{yt}) 310 MPa$

load (P)=11,100 N

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we know $\Delta L$ is given by

$\Delta =\frac{PL}{AE}$

where A= cross-section

$A=\frac{11100\times 500}{0.38\times 207\times 10^9}$

$A=70.556\times 10^{-6} m^2$

$A=\frac{\pi d^2}{2}=70.556\times 10^{-6} m^2$

$d=9.477\times 10^{-3} m$

d=9.477 mm

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4 years ago

Please help me with this entire Math Worksheet.

Aleksandr-060686 [28]

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3 years ago

I need four lines that are parallel because I am doing a math project which is tainted glass

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Answer:

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Step-by-step explanation:

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Read 2 more answers

a rectangle has a perimeter of 34 inches the left side is 6 inches long what is the length of the top side

blsea [12.9K]

<span>P=34</span> inches<span>
a= left side=6 inches</span>

b= top side

P=2a+2b<span>

<span>P=34=2*6+2b
34=12+2b
b=11</span></span>

the length of the top side is 11 inches

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3 years ago