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Each vertex (corner) has a diagonal with each other vertex. Your best bet is to draw a septagon and count them (clue: it's less than 343 but more than 7)
A heptagon has 4 diagonal lines and 7 sides and it has 2 congruent diagonal lines and 2 congruent triangles
A diagonal cannot be a side of a rectangle, and a side cannot be a diagonal.
it has 54 diaganal sides
A square with 2-inch sides has a diagonal of: 2.828 inches.
It depends on what the 7' and 10' refers to. They could be adjacent sides of a rectangle or a parallelogram. If the latter, more information is required before the question can be answered.
A parallelogram is anything from a square to a rectangle. As long as it has parallel sides, then it is a parallelogram. If you're thinking of a rhombus, then it has diagonal sides.
0.5*(64-24) = 20 diagonals
The height and longer diagonal do not provide enough information to calculate the sides.
It has 7 sides
To find the diagonal measurement of a square, you can use the Pythagorean theorem, which states that the square of the hypotenuse (the diagonal) is equal to the sum of the squares of the other two sides. In this case, the diagonal measurement would be the square root of (7^2 + 8^2) = √(49 + 64) = √113. Therefore, the diagonal measurement of a 7 ft by 8 ft square is approximately 10.63 feet.
heptagons have 7 sides
if the sides are 'a' and 'b' then you can call the diagonal 'c'. all you have to do is a2 + b2 = c2. once you fin out what 'a2 + b2' is just root it and you will have 'c', your diagonal.