https://prnt.sc/ity7pc
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https://prnt.sc/itya2y
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http://prntscr.com/itya7k
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https://prnt.sc/ityeix part 1
https://prnt.sc/ityeox part 2
https://prnt.sc/ityfex part 1
https://prnt.sc/ityfgl part 2
https://prnt.sc/ityg2a part 1
https://prnt.sc/ityg45 part 2
https://prnt.sc/itygip
https://prnt.sc/itygmv
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(Copy and Paste the links)
Second one
This is a 30-60-90 right triangle
The side across from the 30 degree angle = (1/2) * hypotenuse = (1/2) * 6 = 3 = y
Third one
In a 45-45-90 right triangle, the hypotenuse is √2 times either of the legs =
5√2 = r
Fourth one :
The side across from the 30 degree angle = 3
x is across from the 90 degree angle in the second triangle = 3√2