So in fig 1 :
- L = 14m
- W = 9m
- Area = L × W
- Area = 9 × 14
- Area = 126 m²
In fig 2 :
- L = 7m
- W = 16 - 9 = 7m
- Area= L × W
- Area = 7 × 7
- Area =49m²
- TA = 126 + 49
- TA = 175 m²
21, 31, 41, 51, ... Find S17
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