Just one question. Explain the reason There is a parallelogram with a length of 6 on one side. How long are his two diagonals/ A. 4 and 6 B. 4 and 8 C. 2 and 6 D. 6 and 8

Just one question. Explain the reason There is a parallelogram with a length of 6 on one side. How long are his two diagonals/ A. 4 and 6 B. 4 and 8 C. 2 and 6 D. 6 and 8

"How long are his two diagonals when there is a parallelogram with 6 on one side?"
According to "the sum of any two sides of a triangle is greater than the third side"
It can be determined that a, B and C are wrong
(Note: the diagonals of parallelograms are bisected)
A. the reason for the error: 2, 3 and 6 line segments cannot form a triangle, 2 + 3 < 6
B error reason: 2, 4, 6 three length line segments can not form a triangle, 2 + 4 = 6
C error reason: 1, 3, 6 three length line segments can not form a triangle, 1 + 3 < 6
So you can only choose D
D correct reason: 3, 4, 6 three lengths of line can form a triangle
For reference! Jswyc