The lengths of the sides of a rectangle are 18cm by 3m. Express the area of the rectangle in square decametres.

For this case we have that by definition, the area of a rectangle is given by:

Where:

b: It is the base of the rectangle

h: It is the height of the rectangle

By definition we have to:

1 meter equals 0.1 decameters

1 centimeter equals 0.001 decameters

According to the data of the statement we have:

Thus, the area of the rectangle is:

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7