<Dl> <Dd> S x = A y _̄ = ∑ i = 1 n y i d A i = ∫ A y d A (\ displaystyle S_ (x) = A (\ bar (y)) = \ sum _ (i = 1) ^ (n) (y_ (i) \, dA_ (i)) = \ int _ (A) ydA) </Dd> </Dl> <Dd> S x = A y _̄ = ∑ i = 1 n y i d A i = ∫ A y d A (\ displaystyle S_ (x) = A (\ bar (y)) = \ sum _ (i = 1) ^ (n) (y_ (i) \, dA_ (i)) = \ int _ (A) ydA) </Dd> <Dl> <Dd> S y = A x _̄ = ∑ i = 1 n x i d A i = ∫ A x d A (\ displaystyle S_ (y) = A (\ bar (x)) = \ sum _ (i = 1) ^ (n) (x_ (i) \, dA_ (i)) = \ int _ (A) xdA). </Dd> </Dl> <Dd> S y = A x _̄ = ∑ i = 1 n x i d A i = ∫ A x d A (\ displaystyle S_ (y) = A (\ bar (x)) = \ sum _ (i = 1) ^ (n) (x_ (i) \, dA_ (i)) = \ int _ (A) xdA). </Dd>

How to find q first moment of area