How do i find k?
2 Answers
Mar 19, 2018
Explanation:
A 45-45-90 degrees triangle, has three side rules:
Side opposite to 90 degrees:
Side opposite to 45 degrees:
Side opposite to 45 degrees:
And since the hypotenuse, or the side opposite to 90 degrees is 20:
Mar 19, 2018
Explanation:
#"since the triangle is right use "color(blue)"trig ratio"#
#"there are 2 possible approaches here"#
#•color(white)(x)cos45^@="adjacent"/"hypotenuse"=k/20#
#rArrk=20xxcos45^@=20xx1/sqrt2=(20sqrt2)/2=10sqrt2#
#color(red)"OR"#
#•color(white)(x)sin45^@="opposite"/"hypotenuse"=k/20#
#rArrk=20sin45^@=20xx1/sqrt2=10sqrt2#