Question

У трикутнику дві сторони мають довжину по 18 дм 6 см кожна, а третя на 9 см коротша від кожної з них.Обчисли периметр трикутника.

Answer 1

18дм и 6см=186 см это 2 одинаковые стороны , а  третья сторона 186-9=175 см ,  периметр значит будет 186+186+177=549 см=54 дм 9 см

Answer 2

Perimeter of the Triangle

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

Given that two sides of the triangle have a length of 18 dm 6 cm each, and the third side is 9 cm shorter than each of them, we can calculate the lengths of the sides as follows:

Length of the first side = 18 dm 6 cm = 186 cm Length of the second side = 18 dm 6 cm = 186 cm Length of the third side = 186 cm - 9 cm = 177 cm

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

Perimeter = Length of the first side + Length of the second side + Length of the third side Perimeter = 186 cm + 186 cm + 177 cm

To find the sum, we can add the numbers together:

Perimeter = 549 cm

Therefore, the perimeter of the triangle is 549 cm.