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Basile [38]
3 years ago
15

If an altitude is drawn from the right angle of a right triangle to its hypotenuse, the two segments formed on the hypotenuse ar

e 11.25 cm and 5 cm, then what is the length of the altitude?

Mathematics
1 answer:
valentina_108 [34]3 years ago
8 0

Answer:

the length of the altitude is 7.5 cm

Step-by-step explanation:

In a Δ ABC, \overline {BC} is the altitude

If an altitude is drawn to the hypotenuse of the right angle triangle as shown in the image attached below; Then:

(AD)^2 = AD*AC \\ \\ x^2 = 5*11.25 \\ \\ x^2 = 81.25 \\ \\ x = \sqrt{81.25} \\ \\ x= 9.01

NOW;

(BC)^2 = DC*AC \\ \\ z^2 = 11.25 *16.25 \\ \\z^2 = 182.8125 \\ \\ z= \sqrt{182.8125} \\ \\  z= 13.52

Finally; the altitude which is \overline {BD} is calculated as:

(BD)^2 = AD*DC \\ \\ y^2 = 5*11.25 \\ \\ y^2 = 56.25 \\ \\ y = \sqrt{56.25} \\ \\ y= 7.5

Thus; the length of the altitude is 7.5 cm

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