Add to ORKGPlane GeometryLet the chord CF intersect the diameter AB of a circle. Let D and E be the feet of the perpendiculars from A and B to CF. Then CD = EFComponente Curricular::Ensino Fundamental::Séries Finais::Matemátic
Knowledge about plane geometry and trianglesLet ABC be a triangle and H the foot of the altitude fro...
Let ABC be a triangle. Let AA' and BB' bisect the angles CAB and ABC. Let P be a point on A'B' and P...
Plane GeometryLet AB be the diameter of a semicircle. Let CB and CD be tangents. If DE is perpendicu...
Plane GeometryLet the chord CF intersect the diameter AB of a circle. Let D and E be the feet of the...
Plane GeometryLet AB be the diameter of a semicircle. Let CD and CE be tangents from a point C. Let ...
noneThe perpendicular line from the center of a circle O bisects the chord SR. Conversely, the line ...
noneThe perpendicular line from the center of a circle O bisects the chord SR. Conversely, the line ...
noneSuppose two circles with centers A and B intersect at C and D. Then, AB is perpendicular to CDCo...
noneSuppose two circles with centers A and B intersect at C and D. Then, AB is perpendicular to CDCo...
Plane GeometryLet two circles with diameters BC and DE be tangent at point A. If BC || DE, then A, C...
noneLet P be a point inside a circle. Let AB and CD be two chords through P. Then, AP x BP = CP x DP...
noneLet P be a point inside a circle. Let AB and CD be two chords through P. Then, AP x BP = CP x DP...
Knowledge about plane geometryLet A and C be the centers of two tangent circles. Draw a line from a ...
Knowledge about plane geometry and trianglesLet ABC be a triangle and H the foot of the altitude fro...
Knowledge about plane geometryLet A and C be the centers of two tangent circles. Draw a line from a ...
Knowledge about plane geometry and trianglesLet ABC be a triangle and H the foot of the altitude fro...
Let ABC be a triangle. Let AA' and BB' bisect the angles CAB and ABC. Let P be a point on A'B' and P...
Plane GeometryLet AB be the diameter of a semicircle. Let CB and CD be tangents. If DE is perpendicu...
Plane GeometryLet the chord CF intersect the diameter AB of a circle. Let D and E be the feet of the...
Plane GeometryLet AB be the diameter of a semicircle. Let CD and CE be tangents from a point C. Let ...
noneThe perpendicular line from the center of a circle O bisects the chord SR. Conversely, the line ...
noneThe perpendicular line from the center of a circle O bisects the chord SR. Conversely, the line ...
noneSuppose two circles with centers A and B intersect at C and D. Then, AB is perpendicular to CDCo...
noneSuppose two circles with centers A and B intersect at C and D. Then, AB is perpendicular to CDCo...
Plane GeometryLet two circles with diameters BC and DE be tangent at point A. If BC || DE, then A, C...
noneLet P be a point inside a circle. Let AB and CD be two chords through P. Then, AP x BP = CP x DP...
noneLet P be a point inside a circle. Let AB and CD be two chords through P. Then, AP x BP = CP x DP...
Knowledge about plane geometryLet A and C be the centers of two tangent circles. Draw a line from a ...
Knowledge about plane geometry and trianglesLet ABC be a triangle and H the foot of the altitude fro...
Knowledge about plane geometryLet A and C be the centers of two tangent circles. Draw a line from a ...
Knowledge about plane geometry and trianglesLet ABC be a triangle and H the foot of the altitude fro...
Let ABC be a triangle. Let AA' and BB' bisect the angles CAB and ABC. Let P be a point on A'B' and P...
Plane GeometryLet AB be the diameter of a semicircle. Let CB and CD be tangents. If DE is perpendicu...