Question

Дан ромб,один из углов равен 30 градусов,сторона=12 см,Найти площадь ромба

Answer 1

чтобы найти площадь ромба, нужно:

S=12^2*sin30град.

S=144*0,5

S=72 см^2 

Answer 2

Finding the Area of a Rhombus

To find the area of a rhombus, we can use the formula: Area = (diagonal1 * diagonal2) / 2.

In this case, we are given that one of the angles of the rhombus is 30 degrees and one side is 12 cm.

To find the area, we need to find the lengths of the diagonals. Since we don't have the lengths of the diagonals directly, we can use the properties of a rhombus to find them.

Properties of a Rhombus

1. All sides of a rhombus are equal in length. 2. The diagonals of a rhombus bisect each other at right angles. 3. The diagonals of a rhombus are not equal in length.

Using these properties, we can find the lengths of the diagonals.