1
To find the perimeter of a triangle add up all three sides.
it means the sum of three sides of a triange is 209 simple..
Pythagorean theorem ~ a Squared + b Squared= c Squared
Yes
never.
width x highest point on the triange then divide by 2 if equilateral/isoceles triange height x width then divide by 2 if right angled triange/scalene triangle
a cone
three
== ==
a scalene triangle
a triange
180 degrees