Question

If BC=6.7, CD=6.2, and AD=13.3, find AB to the nearest tenth

Answer 1

14.4

Explanation:

AB / BC = AD/CD

AB/6.7 = 13.3 / 6.2

AB = 13.3 * 6.7 / 6.2

AB = 14.4

Answer 2

The answer is 14.4 units.(option A)

Explanation:

Angles BAC and CAD are equal.

We can solve this by using the proportional relation.

`(AB)/(BC) =(AD)/(CD)`

Let AB be = x

So,
`(x)/(BC) =(AD)/(CD)`

`(x)/(6.7) =(13.3)/(6.2)`

`(x)/(6.7) =2.145`

`x=6.7*2.145` = 14.37 units

And rounding to nearest tenth, we get 14.4 units.