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6:  hexagon and start

3 triangle and shield

Step-by-step explanation:

The first shape has 6 equal sides so it has 6 lines of symmetry, three at the corners and three down the middle.

The triangle has 3 lines of symmetry, from the corner to the opposite center.

The star has 6 lines of symmetry, 3 from tip to tip, 3 from indent to opposite indent.

The shield has 3 lines of symmetry, from corner to opposite center

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w

answer: the resulting cross section is a rectangle. solution: a plane parallel to the base of a triangular prism will intersect a cross section that is the same shape as its bases. so the cross section is a triangle.

step-by-step explanation: