850 likes | 1.48k Views
Do Bees Build It Best?. Geometry Trigonometry. BUILDING THE BEST. NAILING DOWN AREA. HOW MANY CAN YOU FIND?. THAT’S ALL THERE IS!. HALVING YOUR WAY. PARALLELOGRAMS AND TRAPEZOIDS. FORMING FORMULAS. GOING INTO THE GALLERY. A RIGHT-TRIANGLE PAINTING. A TRIGONOMETRIC SUMMARY.
E N D
Do Bees Build It Best? Geometry Trigonometry
ANY TWO SIDES WORK • LEG^2 + LEG^2 = HYP^2
THAT’S ALL THERE IS! • EACH TRIANGLE MUST HAVE AN AREA OF 2 UNITS • EACH TRIANGLE MUST HAVE ITS VERTICES ON PEGS • EACH TRIANGLE MUST HAVE A HORIZONTAL SIDE
FORMING FORMULAS • LOOK FOR WAYS TO CUT UP THE PARALLELOGRAMS AND TRAPEZOIDS INTO TRIANGLES
GOING INTO THE GALLERY • REMEMBER, THE HEIGHT IS ALSO THE ALTITUDE WHICH IS DRAWN PERPENDICULAR TO THE BASE
A RIGHT-TRIANGLE PAINTING • DRAW A RIGHT TRIANGLE THAT HAS A 55 DEGREE ANGLE • EXTEND BOTH SIDES SO THAT THEY ARE AT LEAST 10 CM IN LENGTH
A TRIGONOMETRIC SUMMARY • SIN A = OPPOSITE/HYPOTENUSE • COS A = ADJACENT/HYPOTENUSE • TAN A = OPPOSITE/ADJACENT
A HOMEMADE TRIG TABLE • DRAW A RIGHT TRIANGLE USING THE ASSIGNED ANGLE FOR YOUR GROUP • MEASURE ALL THE SIDES • COMPUTE THE RATIOS OF SIN, COS, AND TAN