Question

Help me doing these three sums​

Answer 1

Step-by-step explanation:

(I) sin60° = 20/x

√3/2 = 20/x

x= 40/√3

(2) tan30° = 20/x

1/√3 = 20/x

x= 20/√3

(3) sin45° = 20/x

1/√2 = 20/x

x= 20√2 _______