Answer:
x=5
Step-by-step explanation:
Since the sides are equal, the two base angles are equal
10x = 5x +25
5x = 25
Answer:c
20
10+10+10+10=40
40/2=20
C
1 1/4 = 1.25
1 4/5 = 1.8
1.8+1.25=3.05=3 1/20
