Question

Triangle JKL is fromed by plotting three points. What is the leanth of sides JK?

Answer 1

Solution:-

• J (1,5)
• K (1,9)

$\LARGE\leadsto\sf JK=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

$\LARGE\leadsto\sf \sqrt {(1-1)^2+(9-5)^2}$

$\LARGE\leadsto\sf \sqrt {(0)^2+(4)^2}$

$\LARGE\leadsto\sf \sqrt {0+16}$

$\LARGE\leadsto\sf \sqrt {16}$

$\LARGE\leadsto\sf JK=4units$