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Histoires inspirantes de femmes scientifiques africainesUncategorized
PRODUCTION OF ARTIFICIAL COLOSTRUM TO REDUCE CALF MORTALITY AND INCREASE THEIR PERFORMANCEUncategorized
- Inspiring stories from African women scientistsUncategorized
Addressing gender stereotypes in the classroomGeneral
Gender assumptions that challenge a quality education for girls in UgandaEducation
Strengthening Gender Responsive Pedagogy for STEM in UgandaEducation
RESPECT FOR WOMEN IS PARAMOUNTNetworking
THREE DIMENSIONAL GEOMETRY PROJECTION:
Consider the diagram below;-
BD is the projection of BA on the line.
The angle between two planes.
The line AB is the line of intersection of the planes ABCD and ABEF. In order, to find the angle between the two planes. Draw a line XP in the plane ABEF which is perpendicular to AB also draw a line YP in the plane ABCD which is perpendicular 2 the line AB. Then the angle XPY gives us the angle between the planes.
The angle between a line and a plane.
Consider the line OE which meets the plane ABCD at point O.In order to get the angle between
the line OE and plane ABCD drop a perpendicular from E to the plane.The perpendicular meets
the plane at point F∴the projection of OE onto the plane is of .So the agnle between the line OE and plane ABCD
is EOF.
Example:
A rectangular box with top WXYZ and base ABCD.
AB = 6cm
BC = 8 cm
And WA = 3 cm
Calculate a) the length of AC
b) The angle between WC and AC
A VIDEO ABOUT THREE DIMENSIONAL GEOMETRY PROJECTION
A point A is 200m due south of a tower a point B is due east of the tower and on a bearing of 0370 from A.
In the diagram, A, B and O are points in a horizontal plane and P is vertically above O where OP = (h) m. A is de west of O, B is due south of O and AB = 6m. The angle of elevation of P from A is 250 and from B is 330.
4. The angle of elevation of the top of a tower is 270 from a point A due east it .The angle of elevation of the tower is 110 from another point B due south of the tower. Find the height of the tower if the distance AB = 40m.
ASSIGNMENT : THREE DIMENSIONAL GEOMETRY PROJECTION ASSIGNMENT MARKS : 20 DURATION : 60 minutes