need help with part 6

, Ldb vdld Phase 2: Determining Focal Length Case d, (cm) d; (cm) doEld; 171 171 Calculated focal length, f (cm) Measured focal length, f (cm) Phase 3: Observing Images, Part 1 di (cm) d,' (Cm) Case do (cm) calculated measured 1 d, = E-f 4.275 -8.549 -8.76 Phase 4: Observing Images, Part 2 di (cm) d,' (Cm) Case do (Cm) calculated measured 3 d, = Ef 12.9 25.8 25.8 Phase 5: Observing Images, Part 3 d; (cm) d; (cm) LSSt d (Cm) calculated measured d,=3f 25.8 12.9 12.7 m calculated m calculated -2 m calculated -0.5 m Image Real 8.55 8.6 m measured Image 2.05 Virtual m measured Image -2 Real m measured Image -0.5 Real Orientation Inverted Orientation Upright Orientation Inverted Orientation Inverted I AW wvawva a; d; Case d, (cm) i (em) i (o) m calculated calculated measured d,=3f 25.8 12.9 12.7 -0.5 Phase 6: Calculating Image Height Object height (measured): h, (cm) Image height (calculated): h; (cm) Object distance (calculated): d, (cm) Image distance (calculated): d; (cm) Object distance (measured): d, (cm) Image height (measured): h; (cm) Phase 7: Comparing Calculated and Measured Data m measured Image -0.5 Real 2.7 6.48 N Orientation Inverted