We need to find the length of the longest side of an arrowhead.
Length of the longest side of the tip is .
The length of one of the legs of the isosceles right triangle is 10 units.
Since, it is a isosceles right triangle, two sides will have equal lengths.
So, the other side of the triangle will also be 10 units and the angle between these two sides will be .
So, the Pythagoras theorem can be used to find the third side which will be the longest.
The length of the longest side of the tip is .
Learn more:
brainly.com/question/10803992
brainly.com/question/16893462