Answer: BC = 15
Step-by-step explanation:
Since the triangles are congruent, that means they are the same. So side AB = side EF. Since we know side FD is 15, that means side BC= 15
Answer:
(x+3)(x+4)
Step-by-step explanation:
This is a simple decomposition factoring.
You find something that adds to 7 and multiplies to 12.
Those two numbers are 4 and 3.
Answer:
Step-by-step explanation:
No entendí °-°
Since the perimeter is 45 each side is 7.5 (45 divided by number of sides).
Now the picture already divided the hexagon into one triangle, and you can make another triangle in the bottom left. You can isolate the middle part into a big rectangle and the right part into two triangles.
Area of rectangle: length * width
Area of triangle: (1/2) * base * height