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figure A is a square, which means they have equal sides
area of square = side x side
area of square = 81 m²
what same number multiple by itself gives 81?
9 x 9 = 81
side of square = 9m
since the tiles small side creates 2u
2u = 9m 1u = 9 ÷ 2 = 4.5m 3u = 9 + 4.5 = 13.5m
figure B area is the same as figure A, since they both have the same tiles (81m²)
number of figure B tiles → 2106 ÷ 81 = 26
path length → 26 x 13.5 = 351m
path breadth → area of B ÷ length of B = 81 ÷ 13.5 = 6m
path perimeter → 2 x path length + 2 x path breadth = 2 x 351 + 2 x 6 = 714m