PARTICIPATION _ _ Acnvrrv l .1 .4. Instruotlons. 1) Which instruction completes the program to compute a triangle's area? base = Get next input height = Get next input Assign x with base * height Put x to output 0 Multiply x by 2 0 Add 2 to x 0 Multiply x by 1/2. 2) Which instruction completes the program to compute the average of three numbers? x = Get next input y = Get next input 2 = Get next input Putato output 0 a=(x+y+z)/3 O a=(x+y+zJ/2 O a=x+y+z