Question

Диогонали ромба= 10см и 12см найти площадь и периметр

Answer 1

S=10*12:2=60 см
P=4 √(10:2)^+(12:2)^ ≈ 31.24
√ -корень,обозначу так
^-в квадрает

Answer 2

Calculation of the Area and Perimeter of a Rhombus

To find the area and perimeter of a rhombus, we need to know the lengths of its diagonals. In this case, the lengths of the diagonals are given as 10 cm and 12 cm.

Area of a Rhombus: The area of a rhombus can be calculated using the formula: Area = (1/2) * d1 * d2, where d1 and d2 are the lengths of the diagonals.

Substituting the given values, we have: Area = (1/2) * 10 cm * 12 cm Area = 5 cm * 12 cm Area = 60 cm²

Therefore, the area of the rhombus is 60 cm². Perimeter of a Rhombus: The perimeter of a rhombus can be calculated by adding the lengths of all four sides.

Since a rhombus has four equal sides, we can calculate the perimeter by multiplying the length of one side by 4.

To find the length of one side, we can use the formula: Side = (1/2) * √(d1² + d2²), where d1 and d2 are the lengths of the diagonals.

Substituting the given values, we have: Side = (1/2) * √(10 cm)² + (12 cm)² Side = (1/2) * √100 cm² + 144 cm² Side = (1/2) * √244 cm² Side ≈ (1/2) * 15.62 cm Side ≈ 7.81 cm

Now, we can calculate the perimeter: Perimeter = 4 * Side Perimeter = 4 * 7.81 cm Perimeter ≈ 31.24 cm

Therefore, the perimeter of the rhombus is approximately 31.24 cm.