Step 1 : Choose ONE of the following triangles complete the table below: 1. Obtuse Scalene Triangle Translation to prove SSS Congruence
or
2. Isosceles Right Triangle Reflection to prove ASA Congruence
or
3. Equilateral Equiangular Triangle Rotation to prove SAS Congruence
Original Coordinate Point
Transformation Rule
Image Coordinate Points

A (1, 4)
(x,y) -> (x+ ,y - )
A’ ( , )
B ( 7,4)
(x,y) -> (x+,y - )
B’ ( , )
C (8,9)
(x,y) -> (x+ ,y - )
C’ ( , )

- plz help I've been stuck on this for the longest now!!!

Area of polygon is:

39 square units.

Step-by-step explanation:

The area of polygon is equal to:

Area of ΔBAF+Area of ΔFGC+Area of ΔAEF+Area of rectangle EFGD.

Firstly we will draw a perpendicular from point B to side  which is the base(b)=7 units. to obtain the height(h)=3 units

Area of ΔBAF= (1/2)×b×h

                     =(1/2)×7×3=21/2 square units(1)

Also in ΔFGC:

Base(b)=FG=4 units

and height(h)=GC=3 units.

Area of ΔFGC=(1/2)×b×h

                      =(1/2)×4×3

                     =6 square units(2)

In ΔAEF:

Base(b)=7 units.

Height(h)=FE=3 units.

Area of ΔAEF=(1/2)×7×3

                      =21/2 square units(3)

Now in rectangle  EFGD:

Length(l)=ED=4 units

Breadth(b)=DG=3 units

Area of  rectangle  EFGD=l×b

                                        =4×3

                                        =12 square units(4)

Hence, Area of Polygon is: (1)+(2)+(3)+(4)

Hence, The area of Polygon is:

39 square units.