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Mathematics 12 Online
bri05:

how to solve this again i dont get it

bri05:

1 attachment
Angle:

There's a decent number of steps to this problem. Let's do this step by step together. Do you know how to find the measure of the missing angle in what I just drew? |dw:1613253443255:dw|

bri05:

\(\color{#0cbb34}{\text{Originally Posted by}}\) @Angle There's a decent number of steps to this problem. Let's do this step by step together. Do you know how to find the measure of the missing angle in what I just drew? Created with RaphaëlReply Using Drawing \(\color{#0cbb34}{\text{End of Quote}}\) dont u have to add them up and take it from 180?

Angle:

exactly! so what would you get? :)

bri05:

i got 108

Angle:

Awesome! Now that we know that that angle is 108, what is this angle that I've marked here equal to? |dw:1613253559130:dw|

bri05:

\(\color{#0cbb34}{\text{Originally Posted by}}\) @Angle Awesome! Now that we know that that angle is 108, what is this angle that I've marked here equal to? Created with RaphaëlReply Using Drawing \(\color{#0cbb34}{\text{End of Quote}}\) it would be equal to 108 to right

Angle:

Not quite, the idea we want to use there is that two angles that make a straight line will add up to equal 180

bri05:

so then what does that angle to

Angle:

108 + ? = 180

bri05:

i got 72

Angle:

Great! Now we can put 72 here and now we have enough information to solve for x |dw:1613253695918:dw|

bri05:

wait im lost how do u find x

Angle:

The interior angles of a triangle add up to 180

Angle:

72 + 72 + x = 180

bri05:

OHHH so x is 36?

Angle:

you got it! :)

bri05:

yay thanks i might have more problems soon

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