Special right triangles

The exact value of x is  

The approximated value of x is 8.49

Step-by-step explanation:

Let us revise the rules in the right angle triangle when we draw the  perpendicular from the right angle to the hypotenuse

In triangle ABC

1. (AB)² = AD × AC

2. (BC)² = CD × AC

3. (BD)² = AD × CD

4. BD × AC = AB × BC

From the given figure

x represents the length of the ⊥ line from the right angle to the hypotenuse

To find x let us use rule number 3

∵ (BD)² = (AD) × (CD)

∵ BD = x , AD = 3 , CD = 24

∵ x² = 3 × 24

∴ x² = 72

- Use √ for both sides

∴ x =

- Find its value by decimal

∴ x = 8.485281374

- Round it to the nearest hundredth

∴ x ≅ 8.49

r = 78539458390583095803458309458039485093485 or just 3

step-by-step explanation:

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