Question

Type the correct answer in the box.

An airplane takes off from point A in a straight line, as shown in the diagram.
The distance from A to E is ____ feet.

Answer 1

11700

Explanation:

Answer 2

11700

Explanation:

The triangles are similar (presumably) because their ratios are the same for all three corresponding sides.

Equation

• Set up the proportion
• AB/AC = AD /AE

Givens

• AB = 5600 feet
• AD = 5200 feet
• AC = 5600 + 7000 = 12600 feet
• AD = ?

Solution

• 5600 / 12600 = 5200 / x Cross multiply
• 5600x = 12600 * 5200 Simplify the right.
• 5600x = 65,520,000 Divide by 5600
• x = 65,520,000/5600 Do the division
• x = 11,700