Fill in the blanks so that the shape makes a square and find the area of that. Then find the area of the shape you added. When you have both areas, subtract the greater from the smaller.
A scalene triangle is a shape that has no sides or angles with the same measurements.
no
An irregular pentagon.
An irregular polygon
An irregular octagon.
Any shape with 10 sides is called a decagon. A regular decagon is a shape with 10 even sides, so you are looking for an irregular decagon.
A trapezium.
an four sided figure is called a quadrilateral.
It can be irregular too so it's a septagon
Not exactly. They are two names for the same shape. The typical shape consists of a four-sides figure with opposite sides (and angles) equal. Each pair of parallel sides are the same length.
Add up the lengths of the sides.
in order to find the perimeter of a shape add up all the sides measurements