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ayyookyndall
 one year ago
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ayyookyndall
 one year ago
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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Use this theorem SAS Similarity Theorem. Notice the two sides of triangle TRS are proportional to the two sides of triangle TPQ. Next you notice that the included angle of these sides is the same. Therefore, similar. Let me know if you got it :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0First you have to apply Pythagorean theorem .. you have 3 sides then 3 combination try all of them first to be sure if it is rightangled triangle or not then see if it obtuse or acute , but first lets get through steps

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.0a right triangle is exactly 90 degrees acute triangle is < 90 degrees obtuse tirangle > 90 degrees

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Sorry I will re answer :D

ayyookyndall
 one year ago
Best ResponseYou've already chosen the best response.0Take your time. :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.01) 80 & 89 \[\sqrt{80^2 + 89^2} \neq 39\] 2) 89 & 39 \[\sqrt{89^2+39^2} \neq 80\] 3) 80 & 39 \[\sqrt{80^2 + 39^2} = 89\] So this is a rightangled triangle :)

ayyookyndall
 one year ago
Best ResponseYou've already chosen the best response.0How? A right angled triangle would have a 90 degree with it...

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0And you know that for a rightangled triangle Pythagorean theorem is applicable ? So why not using this fact to solve ! :D Any way you can draw them like this and get Ur calculator and some coffee then do Ur calculations for each angle dw:1432968271852:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You know the formula for arc length ? It's : dw:1432968741023:dw So applying this to the question we will get : \[\frac{ 90 }{ 360 } * 2π * 10 = ?\] So let me know your answer :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0*\[\frac{ n^o }{ 360^o } * 2πr\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0How you figured out this answer so ?

ayyookyndall
 one year ago
Best ResponseYou've already chosen the best response.0I used my calculator

ayyookyndall
 one year ago
Best ResponseYou've already chosen the best response.0I was correct, right?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Nope ! You have done sth wrong :D Just type the equation I provided you and let me know

ayyookyndall
 one year ago
Best ResponseYou've already chosen the best response.0What does n stand for?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The angle that the arc includes .. Sorry its 270 not 90 :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0What is the angle for XPY ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Nice .. This is the answer ! :D Now to get it in terms of pi just divide the result by π and you will get : 30 Then the final answer will be 30π :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Welcomes :) Feel free to ask me anytime :)
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