Step 1: Classify the fragments by curvature and edges.
Scan the ten pieces and sort them visually:
Keeping line thickness and arc radius consistent helps determine which pieces belong together.
Step 2: Build the only digit with two closed loops (8).
Among the pieces, two complementary “C”-shaped pairs match top–bottom and left–right to close into two loops of equal thickness.
These four pieces assemble uniquely into an 8.
Step 3: Form the remaining single-loop digits.
From the leftover pieces, identify:
Step 4: Determine the left-to-right order.
Place the four constructed digits so neighboring edges of fragments align smoothly (no rotation needed). The natural joins of the backgrounds and the continuity of stroke thickness fix the order as: \[ 8 \ 5 \ 6 \ 3 \] Hence, the four-digit number is 8563.
The correct answer is 8563.
Consider the three input raster images given below. A geospatial analyst decided to use the overlay operation to generate a new raster showing the average values. The values of the cells P, Q, and R in the output raster are:
Input raster
5 | 2 | 3 |
1 | 2 | 2 |
3 | 1 | 1 |
→
1 | 3 | 2 |
4 | 7 | 5 |
1 | 1 | 1 |
→
3 | 4 | 1 |
4 | 3 | 2 |
2 | 1 | 1 |
Output raster
P | Q | R |
- | - | - |
- | - | - |
Find the best match between column I and column II for the following scenario related to spatial operators.