It is a quadrilateral because it has four sides.
It's also a parallelogram because it has two sets of parallel sides.
More specifically, it is a rhombus since all sides are of equal length.
Hope this helps!
You have the ability to understand and apply the laws of algebra. When you simplify algebraic expressions, you can apply the rules such as the law of exponents, the PEMDAS rule, operations involving fractions and many more. Algebra is the basic form of mathematics.
First, break up the shapes into parts. The first one you see is 7 by 4 rectangle on the top.
A=l*w
A=7*4
A=28 for the rectangle, your not done
Now the triangle to the left
A=l*w/2
A=19*10/2
A=95
Now all you got left is the trapezoid, which area's formula is:
A=(b∧1+b∧2*h)/2
A=9+19*8/2
A=112.
Now you have the area for three of the figures, add them up:
112+95+28=235
So in total, the area of this figure is 235 cm^2
