Question

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

Answer 1

Answer:

14.4

Step-by-step explanation:

AB / BC = AD/CD

AB/6.7 = 13.3 / 6.2

AB = 13.3 * 6.7 / 6.2

AB = 14.4

Answer 2

Answer:

The answer is 14.4 units.(option A)

Step-by-step explanation:

Angles BAC and CAD are equal.

We can solve this by using the proportional relation.

$\frac{AB}{BC} =\frac{AD}{CD}$

Let AB be = x

So, $\frac{x}{BC} =\frac{AD}{CD}$

$\frac{x}{6.7} =\frac{13.3}{6.2}$

$\frac{x}{6.7} =2.145$

$x=6.7\times2.145$ = 14.37 units

And rounding to nearest tenth, we get 14.4 units.