Answer:
<h3>C.) The area of EFGH is always ¹/₂ of the area of the rectangle. </h3>
Step-by-step explanation:
If EG is parallel to the side of the rectangle then lenght of EG is equal to width of rectangle.
If F and H are midpoints of sides of rectangle then FH is parallel to the side of rectangle {wich is perpendicular to the side parallel to EG}. That means the lenght of FH is equal to lenght of rectangle, and FH is perpendicular to EG.
Then FH is sum of hights of triangles EFG and EHG
, and the area of EFGH is sum of areas of triangles EFG and EHG
.
So the area of the rectangle: 
The area of the kite:

No matter the height of the triangles, so no matter the location of the EG
Step-by-step explanation:
180 + 20 + 5 suma eso y la respuesta está correcta
Answer:
B
Step-by-step explanation:
Since the triangle is right use Pythagoras' identity to solve for x
The square on the hypotenuse is equal to the sum of the squares on the other two sides, that is
x² + 7² = 12², that is
x² + 49 = 144 ( subtract 49 from both sides )
x² = 95 ( take the square root of both sides )
x =
≈ 9.7 ( to the nearest tenth )