The vertices of Upper Delta ABC
are Upper A (-5,4)
​,
Upper B (-2,3)
​,
and Upper C (-2,2)
.
If Upper Delta
ABC
is reflected across the line y equals 1
to produce the image Upper Delta
​A'B'C',
find the coordinates of the vertex Upper B
​'.
The coordinates of Upper B
​'
after a reflection across the line y equals 1

are
.

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.

step-by-step explanation: