Answer: " 20 square units " ; or, write as: " 20 units² " .
________________________________________________________
Note:
________________________________________________________
The formula for the area, "A" of a triangle:
" A = (1/2) * b * h " ;
in which: "A = area" (for which we are to solve);
"b = base length" = 8 (given) ;
"h = perpendicular height = 5 (given) ;
A = (1/2) * b * h = (1/2) * 8 * 5 = 4 * 5 = 20 .
_________________________________________________________
Answer: The area of the triangle given is: " 20 units² " ;
or, write as: " 20 square units" .
_________________________________________________________
Edit: Another way to write the formula for the area, "A", of a triangle is:
" A = (b * h) / 2 " ;
and we can solve: " A = (b * h) / 2 = (8 * 5) / 2 = 40 / 2 = 20 .
_________________________________________________________
The answer is: " 20 square units " ; or, write as: " 20 units² " .
_________________________________________________________