Question

Right triangle ABC is shown.

Which equation can be used to solve for c?
3
O sin(50%) =
3
3 m
A
С
O sin(50%) =
win
a
50°
С
O cos(50%) =
B
ulm mlu
O cos(50%) =

Answer 1

`\sin(50^o) = (3)/(c)`

Explanation:

Given

See attachment for triangle

Required

Expression to solve c

To solve for c, we simply calculate the sine of angle at B

i.e.

`\sin(50^o) = (Opposite)/(Hypotenuse)`

This gives:

`\sin(50^o) = (3)/(c)`

Make c the subject

`c = (3)/(\sin(50^o))`