Question

What is BD?

Answer 1

The length of side BD is; 13.

Length measure in a triangle

From the given diagram;

• It follows that the ratio which holds is;

12 : x = 27 : x + 5

12/x = 27/x+5

• By cross product;

27x = 12x +60

• subtract 12x from both sides

15x = 60

• Divide both sides by 15

x = 4.

On this note, the length of the line BD is;

= BC + CD

= 4 + (4 + 5)

= 4 + (9)

= 13

Therefore, the length of the line BD is 13.

Read more on triangle length measures;

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