#One acute angle of a right triangle is 36° more than twice the other angle. Which of thefollowing

53 messages · Page 1 of 1 (latest)

dreamy trail
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let a be the first angle and b be the second angle

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how can you relate them with an equation?

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(any ideas at all?)

edgy berry
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not sure @dreamy trail

dreamy trail
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is b is the other angle, what is "twice the other angle"?

edgy berry
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72

dreamy trail
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no not twice 36

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what is twice b?

edgy berry
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uhhh

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bx2?

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idk

dreamy trail
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yes

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2 b

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so now what's 36° more than that?

edgy berry
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36+ 2b

dreamy trail
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right

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so 36 more than twice the other angle is 36 + 2b

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so our equation is

a = 36 + 2b

edgy berry
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ohhhh thanks

dreamy trail
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do you know which one it is now?

edgy berry
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yea

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i think

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wait

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it would be a right

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@dreamy trail ?

dreamy trail
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so the option now is between

x + y = 180
and
x + y = 90

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these equations come from the fact that the sum of the angles in a triangle is 180

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what are the 3 angles in the triangle?

edgy berry
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not sure i know 36

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180 -36 is 144

edgy berry
dreamy trail
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where does it say one of the angles is 36°?

edgy berry
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ohh

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the other is 90

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cause its a right

dreamy trail
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so what equation do you get from that?

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our angles are x and y, remember

edgy berry
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i think its b

edgy berry
dreamy trail
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so x + y + 90 = 180

edgy berry
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yes

edgy berry
dreamy trail
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try to figure it out

edgy berry
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im honestly not sure

edgy berry
dreamy trail
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subtract 90 from both sides

edgy berry
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ohhhh

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im dub

edgy berry
dreamy trail
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yep!

edgy berry
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thanks

edgy berry
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close

thick ginkgoBOT