Question 1
Identify the scaling rule in this sequence:
Figure 1:
Figure 2:
Figure 3:
Figure 4:
Select the next figure:
PATTERN ANALYSIS:
Step 1: Measure the radius of circles in each figure
- Figure 1: radius = 80 units
- Figure 2: radius = 40 units
- Figure 3: radius = 20 units
- Figure 4: radius = 10 units
Step 2: Calculate size changes between consecutive figures
- Fig 1 โ 2: 40 รท 80 = 0ร
- Fig 2 โ 3: 20 รท 40 = 0ร
- Fig 3 โ 4: 10 รท 20 = 0ร
RULE HYPOTHESIS:
The circle radius halves each time (geometric progression)
VERIFICATION:
All consecutive ratios are consistent: 0ร โ
APPLICATION:
Figure 5 radius = 10 ร 0 = 5 units
SCALING PATTERN TYPES:
- Geometric progression: constant r = 0
COMMON MISTAKES TO AVOID:
- Confusing diameter with radius
- Assuming linear when pattern is geometric (or vice versa)
- Miscounting the number of steps
- Not checking both differences AND ratios to identify pattern type
Step 1: Measure the radius of circles in each figure
- Figure 1: radius = 80 units
- Figure 2: radius = 40 units
- Figure 3: radius = 20 units
- Figure 4: radius = 10 units
Step 2: Calculate size changes between consecutive figures
- Fig 1 โ 2: 40 รท 80 = 0ร
- Fig 2 โ 3: 20 รท 40 = 0ร
- Fig 3 โ 4: 10 รท 20 = 0ร
RULE HYPOTHESIS:
The circle radius halves each time (geometric progression)
VERIFICATION:
All consecutive ratios are consistent: 0ร โ
APPLICATION:
Figure 5 radius = 10 ร 0 = 5 units
SCALING PATTERN TYPES:
- Geometric progression: constant r = 0
COMMON MISTAKES TO AVOID:
- Confusing diameter with radius
- Assuming linear when pattern is geometric (or vice versa)
- Miscounting the number of steps
- Not checking both differences AND ratios to identify pattern type