Maaf ya kakak, dr tadi nny trus :D nomor 6 gimana yaa? tolong dijawab yaa, please... buat pagi ini, thank you

a) sin60= y/13
1/2akar3 = y/13
y = 1/2akar3 x 13
y = 13/2akar3 cm
cos60 = x/13
1/2 = x/13
x = 13x1/2
x = 13/2 = 6 1/2 cm

b) ibarat kan garis antara x dan 20 cm = a
sin30 = a/20
1/2 = a/20
a= 20x1/2 = 10 cm .. maka nilai x
sin60 = x/a
1/2akar3 = x/ 10
x = 10x1/2akar3
x = 5akar3 cm
nilai y
cos60 = y/a
1/2 = y/10
y = 10x1/2 = 5 cm

c) nilai x
tan60= x/ 6akar3
akar3 = x/6akar3
x = 6akar3 x akar3
x = 6akar9 = 6x3 = 18cm
nilai y
sin45 = x/y
1/2akar2 = 18/y
y = 18/1/2akar2
y = 36/akar2 cm