Changes
From Karnataka Open Educational Resources
789 bytes added
, 23:39, 27 August 2020
Line 14: |
Line 14: |
| # O is the center of the circle and tangents AP and AQ are drawn from an external point A. | | # O is the center of the circle and tangents AP and AQ are drawn from an external point A. |
| # OP and OQ are the radii. | | # OP and OQ are the radii. |
| + | # The radii of a circle are equal. |
| + | ## In any circle the radius drawn at the point of contact is perpendicular to the tangent.∠BDA=∠BEA=90 |
| + | ## We can draw two tangents to a circle from a point outside the circle |
| + | ## The lengths of the tangents from a point to a circle are equal BD=BE |
| + | ## The tangent drawn from an external point to a circle a] are equal b] subtend equal angle at the centre c] are equally inclined to the line joining the centre and extrnal point. |
| + | ## Angle between the two tangents from a point outside the circle is supplementary to the angle subtended by the line segmnets joining points of contact at the cente |
| + | ## Properties of isoscles triangle. |
| + | ## Properties of quadrillateral ( sum of all angles) is 360 degrees |
| + | ## Sum of three angles of triangle is 180 degrees. |
| | | |
| Go back - [https://karnatakaeducation.org.in/KOER/en/index.php/KVS_Circles#Tangents_to_a_Circle click here] | | Go back - [https://karnatakaeducation.org.in/KOER/en/index.php/KVS_Circles#Tangents_to_a_Circle click here] |
| [[Category:Circles]] | | [[Category:Circles]] |