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Altitudes of a triangle. Orthocenter

Author:Game Math, Vlatka Hižman-Tržić
The applet shows the altitudes of triangle ABC as , and .

Choose the correct answer:

1. Altitude of a triangle is:

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2. Does the position of the orthocenter affect the type of triangle ? If you are not sure about the answer, change the position of the triangle's vertex in the applet above.

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3. If the orthocenter is outside the triangle, what type of triangle is it ?

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  • D
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4. What is the position of the orthocenter in a right triangle ?

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5. What is the relationship between the lenght of the side and the corresponding lenght of the altitude ?

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6. If the sizes of the triangle are 5cm, 11cm and 12cm, the shortest altitude is: Use Heron's formula to calculate the area of the triangle.

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