The lengths of the sides of a triangle are 10, 17 and 21. How long is the altitude of the triangle to longest side?
The lengths of the sides of a triangle are 10, 17, and 21. How long is the altitude of the triangle to the longest side?
a = 10 b = 17 c = 21
1/ Find semiperimeter ( s )
2/ Find the area of a triangle ( A )
3/ Find the height => hc = 2A / c
