- Books Name
- CBSE Class 7 Mathematics Book
- Publication
- Param Publication
- Course
- CBSE Class 7
- Subject
- Mathmatics
ALTITUDES OF A TRIANGLE AND ORTHOCENTRE
AD is a line segment which is perpendicular to the side BC of ∆ABC .This line segment AD is called as altitude of ∆
Altitude is also called as height of a triangle. In the given figure AD is the height of ∆ ABC from vertex A to side BC.
• Orthocentre is the meeting point of all three altitudes of a triangle.
• In the given figure H is the orthocentre of ∆ ABC.
• In obtuse-angled triangle the orthocentre lies outside the triangle.
• In Acute-angled triangle the orthocentre lies inside the triangle.
• In a Right-angled triangle, the right angle lies at the vertex at which the right angle is formed.