Rectangle vs square

The rectangle has dimensions of 13 × 10, square 8 × 8. Which shape has more area and how much above?

Result



Δ S =  66

Solution:

S1=1310=130 S2=88=64 S1>S2S_1 = 13 \cdot 10 = 130 \ \\ S_2 = 8 \cdot 8 = 64 \ \\ S_1 > S_2
ΔS=S1S2=66\Delta S = S_1 - S_2 = 66



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