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Mathematics 38 Online
OpenStudy (anonymous):

Look at triangle XYZ. Which statement is correct about the sum of the lengths of two sides of the triangle? It is half of the length of the third side. It is one-fourth of the length of the third side. It is greater than the length of the third side. It is equal to the length of the third side.

OpenStudy (anonymous):

OpenStudy (anonymous):

Turner joins three sticks having unequal lengths to make a triangle, as shown below. What is most likely the length of the third stick? 4 cm 2 cm 8 cm 5 cm

OpenStudy (anonymous):

I marked the first c and the second a

OpenStudy (anonymous):

is it right ?

OpenStudy (anonymous):

Katie has a pair of earrings in the shape of congruent triangles. The measure of angle ABC is equal to the measure of angle DEF. What is the value of x? 1 4 3 2

OpenStudy (anonymous):

i really need help??

OpenStudy (anonymous):

Betty has to construct a triangle DEF congruent to triangle ABC. Triangle ABC and Bettyfs construction so far is shown below. Which step should Betty do next? Use a straightedge to draw an arc at point D. Use a ruler to measure the length of side CB. Use a ruler to measure the length of side AB. Use a straightedge to join point D and point F.

OpenStudy (anonymous):

"I marked the first c and the second a" No. They are both C. In the second problem the "?" side is clearly longer then the 7cm side and shorter than the 12cm side.

OpenStudy (anonymous):

Thanks, You're like the only person that didn't keep leaving this question.. Mind helping me with a few others?

OpenStudy (anonymous):

I'm working on it... :-) The "congruent earrings" shows the 2 "x" sides formulated 2 different ways. But since the 2 earrings are "congruent", then you know that: x-1 = 2x-3 So from this you can subtract x from both sides to give: -1 = x-3 Now you can add 3 to both sides to give you the value of x: 2=x

OpenStudy (anonymous):

5=3x ?

OpenStudy (anonymous):

2=x +3=+3 5=3x

OpenStudy (anonymous):

Where are you getting the 5 from?

OpenStudy (anonymous):

You said add 3 to both sides. 3+2=5

OpenStudy (anonymous):

Nonono.... You add 3 to both sides of "-1 = x-3", not both sides of "2=x" Adding 3 to both sides of "-1 = x-3" will GIVE you 2=x. To wit: -1 + 3 = 2 x-3 + 3 = x

OpenStudy (anonymous):

Lol , ohhhhh ok (:

OpenStudy (anonymous):

Sehr gut! :-)

OpenStudy (anonymous):

I marked a

OpenStudy (anonymous):

Betty has to construct a triangle DEF congruent to triangle ABC. Triangle ABC and Bettyfs construction so far is shown below. Which step should Betty do next? Use a straightedge to draw an arc at point D. Use a ruler to measure the length of side CB. Use a ruler to measure the length of side AB. Use a straightedge to join point D and point F.

OpenStudy (anonymous):

Geometry isn't my best subject

OpenStudy (anonymous):

Hmmm...now I'M stymied! I'm not sure at all how to proceed on this one.

OpenStudy (anonymous):

Look at the figure below. What is the value of x rounded to the nearest tenth? 1 3.5 8 2.8

OpenStudy (anonymous):

Do i set it up as 2x+4?

OpenStudy (anonymous):

The answer to betty's triangle is "Use a ruler to measure the length of side AB" Ref: http://www.mathopenref.com/constcopytriangle.html

OpenStudy (anonymous):

Ok thanks ,

OpenStudy (anonymous):

Did i set the other problem up right?

OpenStudy (anonymous):

I think I've hit my limit with that one... :( I can't seem to figure out the distance of SQ

OpenStudy (anonymous):

Lol ok i have two more and i'll be done fine with that??

OpenStudy (anonymous):

In the figure below, triangle ABC is similar to triangle PQR. What is the length of side PQ? 12 35 33 36

OpenStudy (anonymous):

Ryan designed a triangular logo for his music group as shown below. He used computer software to enlarge the logo to form a similar logo. Which of these figures could be the enlarged logo?

OpenStudy (anonymous):

OpenStudy (anonymous):

PQ is equal to (34.5 / 11.5) * 12 = 36

OpenStudy (anonymous):

OpenStudy (anonymous):

Triangle ABC is similar to triangle PQR. Which equation is correct?

OpenStudy (anonymous):

Re: the "enlarged photos", any image that's larger than a smaller one could be an enlarged photo. The question is confusing because it's like saying Ryan picked a number and then thought of a larger one, which number of 3,5,7,9,12, or 20 is larger than the number he first picked?

OpenStudy (anonymous):

"Which equation is correct?" You showed me the triangls but you gave no equations.

OpenStudy (anonymous):

Sorry hold on im posting them

OpenStudy (anonymous):

OpenStudy (anonymous):

Would the "Ryan" one be B ? 14,15,12?

OpenStudy (anonymous):

The answer to "thisonewasreallyconfusing" is D.GIF (p/a = r/c)

OpenStudy (anonymous):

By the pictures is marked a letter soo do you mean the second one or last one

OpenStudy (anonymous):

I really have no clue about the Ryan question. Any larger dimension could be an enlargement of any smaller dimension.

OpenStudy (anonymous):

ok you were alot of help gonna see my grade now hold on and for the one you said was d do you mean the seCond one or last one because the second one has a letter d next to it

OpenStudy (anonymous):

Yes, the second one. d.gif which is (p/a = r/c)

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