Answer:15
Step-by-step explanation: this is an equilateral triangle and 45-15-15=15 so no matter what it would be 15
Answer:
It's 15
Step-by-step explanation:
perimeter is sum of all the sides
15+15+v = 45
30+v = 45
subtract 30 from both sides
v = 45-30
= 15mm
