Question

What is the length of SA?

1.89 ft

2.43 ft

3 ft

7 ft

Answer 1

The answer would be 3 ft. Hope this helps!

Answer 2

Observe the given figure,

Since, Line ST is parallel to the line AC.

Therefore, By Basic Proportionality Theorem which states

" If a line is parallel to a side of a triangle which intersects the other sides into two distinct points, then the line divides those sides in proportion".

Therefore,
`(SB)/(SA) = (BT)/(TC)`

`(10)/(SA) = (9)/(2.7)`

By cross multiplying, we get

`SA = (2.7 * 10)/(9)`

SA = 3 ft

Therefore, the length of SA is 3 feet.