Answer:
22.25 ft long
if you add 10.5 with 11.75 you'll get 22.25
Step-by-step explanation:
+) Polygons ABCD has: A(-7;4); B(-5;7); C(-3;4); D(-5; 1)
+) Polygons A'B'C'D' has: A'(-9;0); B'(-7;3); C'(-5;0); D'(-7;-3)
The side lengths of ABCD:
The side lengths of A'B'C'D':
So that side lengths of ABCD equal to those of A'B'C'D'.
However, this is not enough to said that they are congruent polygons, as 2 polygons are congruent when they have all corresponding sides and interior angles are congruent.
ABCD and A'B'C'D' have all corresponding sides congruent.
=> <em>So that "all corresponding interior angles are congruent" must be true for them to be congruent polygons</em>
Answer:
The area is 54
Step-by-step explanation:
First you need to find the area of the triangle.
The fromula to find the area for a triangle is B*H/2. The base for this figure is 10 and the hight is 3. 10*3=30. 30/2= 15. The area for the trianglenis 15.
Now we need to fing the area of the trapizoid. the formula for the trapiziod is (B1+B2)/2=....*h
The B1 for this figure is 7. B2 for this is 6. 7+6=13. 13/2=6.5. the hight for this is 6. 6.5*6=39
Hope this helps!