Question

Одна сторона треугольника имеет длину 3дм 6см а другая в двое длиннее длина третей стороны на 4дм 3см меньше чем сумма длин первых 2ух сторон найдите периметр треугольника

Answer 1

1ст -36 см
2ст-36*2=72
3ст-36+72-43=65
P=36+72+65=173

Answer 2

Perimeter of a Triangle with Given Side Lengths

To find the perimeter of a triangle with the given side lengths, we need to add up the lengths of all three sides.

Let's break down the information provided:

- One side of the triangle has a length of 3 dm 6 cm. - The other side is twice as long as the first side. - The length of the third side is 4 dm 3 cm less than the sum of the lengths of the first two sides.

To calculate the perimeter, we need to convert all the measurements to the same unit. Let's convert everything to centimeters for consistency.

Given: - Side 1: 3 dm 6 cm = 36 cm + 6 cm = 42 cm - Side 2: Twice the length of Side 1 = 2 * 42 cm = 84 cm - Side 3: 4 dm 3 cm less than the sum of Side 1 and Side 2

Now, let's calculate the length of Side 3:

Sum of Side 1 and Side 2 = 42 cm + 84 cm = 126 cm Side 3 = Sum of Side 1 and Side 2 - 4 dm 3 cm

To convert 4 dm 3 cm to centimeters: - 1 dm = 10 cm - 4 dm = 4 * 10 cm = 40 cm - 3 cm = 3 cm

Therefore, 4 dm 3 cm = 40 cm + 3 cm = 43 cm

Side 3 = 126 cm - 43 cm = 83 cm

Now, we can calculate the perimeter of the triangle by adding up the lengths of all three sides:

Perimeter = Side 1 + Side 2 + Side 3 = 42 cm + 84 cm + 83 cm = 209 cm

Therefore, the perimeter of the triangle is 209 cm.