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Lines of Symmetry

Find the numb...

Question

Find the number of lines of symmetry in each of the following shapes.

a-1, b-1, c-1

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a- 2, b-1,c-3

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a-3, b-2, c-1

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a-1, b-3, c-2

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Solution

The correct option is A a-1, b-1, c-1
The Christmas tree has one line of symmetry which is similar to the butterfly. The arrow has one line of symmetry. The lines of symmetry for the figures are depicted below.

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Similar questions

a_{1} b_{1} c_{1}, a_{2} b_{2} c_{2}

a_{3} b_{3} c_{3}

Δ = ∣ ∣ ∣ ∣ \begin{matrix} c_{1} & a_{1} & b_{1} c_{2} & a_{2} & b_{2} c_{3} & a_{3} & b_{3} \end{matrix} ∣ ∣ ∣ ∣

Δ

(\frac{a^{3}}{a - 1}, \frac{a^{2} - 3}{a - 1}), (\frac{b^{3}}{b - 1}, \frac{b^{2} - 3}{b - 1}), (\frac{c^{3}}{c - 1}, \frac{c^{2} - 3}{c - 1})

a, b, c

a b c - (b c + c a + a b) + 3 (a + b + c) = 0.

\frac{\frac{1}{a} + \frac{1}{b + c}}{\frac{1}{a} - \frac{1}{b + c}} (1 + \frac{b^{2} + c^{2} - a^{2}}{2 b c}) (a + b + c)^{- 2}

Question 1(c)

Find the number of lines of symmetry for the given shape:

125 a^{3} + b^{3} + 64 c^{3} - 60 a b c

a^{3} + b^{3} + c^{3} - 3 a b c = \frac{1}{2} (a + b + c) [{(a - b)}^{2} + {(b - c)}^{2} + {(c - a)}^{2}]

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