<span>
1
4
<
3
4
>
A
1
8
B
3
12
C
1
2
D
6ddddddddddddddddddddd
8</span>
Step-by-step explanation:
a−(6a−(5a−8))
a-(6a-5a+8)
a-6a+5a-8
6a-6a-8
0-8
=-8
so the answer doesn't depend on a
The original side length was 12m therefore the perimeter was 36m. 12/4 is 3 so the perimeter is now 9, and the difference between them is 27.
Answer:
Yes they are congruent by SAS (wrong answer)
Edit: the correct answer is by HL