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Svetllana [295]
3 years ago
10

How do i solve this? ASAP!

Mathematics
1 answer:
lukranit [14]3 years ago
8 0

Answer:

Similar triangles states the length of the  corresponding sides are in proportion.

In a given similar triangles:

Labelled the diagram:

Triangle BAC and triangle DAC are similar.

then;

Corresponding sides:

\frac{AB}{AD} = \frac{BC}{DC}

AB = x units , BC = 5 units, AD = 15 units and DC = BD-BC = 8-5 = 3 units

\frac{x}{15} = \frac{5}{3}

By cross multiply we get;

3x = 15 \cdot 5

Simplify:

3x = 75

Divide both sides by 3 we get;

\frac{3x}{3}=\frac{75}{3}

Simplify:

x = 25 units

Therefore, the value of x is 25 units.

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