Answer:
x is 54
Step-by-step explanation:
90-36=54
Answer: 3
Step-by-step explanation: Substitute the value of the variable into the equation and simplify.
Answer:
No
Step-by-step explanation:
4,4,5 and 12,7,7 are isosceles triangles because they have two equal sides . 15,15,15 is an equilateral triangle -it has three equal sides