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3 years ago

Pls help I’m rlly confused. The question says “find the value of x using complementary angels” ty <3

Mathematics

1 answer:

Arturiano [62]3 years ago

8 0

Answer:

x=83. please look below for explanation. if anything isn't clear, please ask

Step-by-step explanation:

so complementary means adding up to 90 degrees in math. in this particular equation, you have to make sure that both (x-18) and 25 add up to 90.

if that other side is 25 degrees, the other side must be 65 because 90-25=65.

so now you have to set those equal to each other like this:

65 = (x-18) now just solve for x

add the 18 to the other side. the -18 and +18 cancel.

x=83

so to test and to see if that is right, we can do

83-18 = 65

does 65+25 equal 90? yes

therefore, x=83

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Answer:

87.7 degrees.

Step-by-step explanation:

In triangle ABC, attached.

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Now,

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4 years ago

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Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

A regular pentagon shares a common center with a regular hexagon. If LM¯¯¯¯¯ || AB¯¯¯¯¯, across how many lines of reflection can

Thepotemich [5.8K]

This problem is very difficult to imagine without the figure. However I dug up on other sources and I think I found the correct figure to work with (see the attached pic).

We can see that in the figure, the hexagon is inscribing the pentagon. What is meant here to be lines of reflection simply means lines of symmetry. If we take on the hexagon alone, there are a lot of lines of symmetry. We can create the line intersecting E & B and the figure would still be symmetrical on both sides or D & A, F & C and etc. So there are a lot for hexagon alone.

However in this case, our lines of symmetry is made limited by the presence of the pentagon. If we slice the pentagon into two, the only line of symmetry we could create would be the line intersecting O and the median of LM. Other lines would not create a symmetrical half.

Therefore the line of reflection is only 1.