Answer:
17 = of 68
42 = of 70
Step-by-step explanation:
Well simply:
68×1÷4=
68÷4=
17
17 is of 68.
70×3÷5=
210÷5=
42
42 is of 70.
1 and 1/3 miles is how long
Complete question :
A, B, C and D are four towns. B is 30 kilometres due east of A. C is due 30 kilometres north of A. D is due 45 kilometres due south of A. Work out the bearing of B from C.
Answer:
44°
Step-by-step explanation:
From the diagram sketched, we have a right angled d triangle, thus we can apply Pythagoras ;
Using the relation :
Tanθ = opposite / Adjacent
Tan θ = 30 / 30
Tanθ = 1
θ = tan^-1(1)
θ = 45°
Hence, bearing of B from C is 45°