The middle line of the triangle is 5.4 cm less than the side parallel to it.
| May 7, 2021 | education
The middle line of the triangle is 5.4 cm less than the side parallel to it. Find the sum of the lengths of the middle line and this side?
The middle line of a triangle is parallel to one of its sides and is equal to half the length of this side.
Then if we denote the size of the middle line of the triangle by x, the length of the third side will be 2x.
2x – x = 5.4;
x = 5.4.
The length of the third side is 5.4 * 2 = 10.8 cm.
The sum of the lengths of the middle line and the third side is 5.4 + 10.8 = 16.2 cm.
Answer: 16.2 cm.
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