This diagram is an example. The bolded lines are the lines you should draw.
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Note: The top solid lines should be drawn, and the dashed lines on the bottom would be drawn, also. The slashes are just filling.
7 squares is forty nine so you remove two toothpicks to make the digits 49
9 squares = 18 triangles * * * * * The correct answer is 76. There are 9 points in the grid. You can pick any 3 out of these 9 points in 9*8*7/(3*2*1) = 84 ways. However, 3 will form horizontal lines in the grid, 3 will form vertical lines in the grid, and 2 will form diagonal lines in the grid. None of these 8 triplets will form triangles, but all the rest will. So the answer is 84-8=76.
In general, a regular n-gon has n lines of symmetry (for odd n, each line goes through a vertex and the side opposite; for even n, half the lines go through two opposite vertices and half go through two opposite sides). A regular heptagon has 7 lines of symmetry. It has 7 symmetrical lines
No. The two closest squares are 49 and 36. The square root of 49 being 7 and the square root of 36 being 6. you can conclude that the square root of 42 isn't a perfect square, but it's square root is between 7 and 6.
7
Easy. Step one: Draw a long-enough straight line. Step two: Draw 3 lines on each half of it to form squares Done.
draw a square and then draw 7 lines in it
7 squares is forty nine so you remove two toothpicks to make the digits 49
There is a formula for the "difference of squares." In this case, the answer is (8x + 7)(8x - 7)
9 squares = 18 triangles * * * * * The correct answer is 76. There are 9 points in the grid. You can pick any 3 out of these 9 points in 9*8*7/(3*2*1) = 84 ways. However, 3 will form horizontal lines in the grid, 3 will form vertical lines in the grid, and 2 will form diagonal lines in the grid. None of these 8 triplets will form triangles, but all the rest will. So the answer is 84-8=76.
The two consecutive negative odd integers having 74 as the sum of their squares are -5 and -7.
The integers are 5 and 7.
4 and 7 -4 and -7
-- It's an odd power of an even number. -- It has only one prime factor, but two factors that are perfect squares. -- It's also the past tense of an act that every life form must do in order to survive. -- You can write it as two circles, two ellipses, two squares, or two parallelograms. -- You see it when you energize all 7 segments of a 7-segment digital display. -- It's the quantity of different numbers that you can write with three digital bits.
There are 7 types of quadrilaterals: Kite, Trapezoid, Isosceles Trapezoid, Parallelogram, Rectangle, Rhombus, and Square.Quadrilaterals with 2 lines of symmetry:Rectangles (if they are not also a square)Rhombuses (if they are not also a square)Squares have 4 lines of symmetry.
-7
7 horizontal lines and 10 vertical lines how many rectangles?