Match the vocabulary word to its correct definition 1 additive identity 2 equation 3 multiplicative identity 4 open sentence 5 symmetric property —when the sides of an equation are interchanged, an equivalent equation is formed ; if a=b, then b=a —a mathematical sentence whose verb is ‘equal’ (=) —the number 0 (for the numbers) —an equation that contains a variable or variables —the number 1 (for the real numbers

See below.

Step-by-step explanation:

match the vocabulary word to its correct definition

1 additive identity

—the number 0 (for the numbers)

2 equation

—a mathematical sentence whose verb is ‘equal’ (=)

3 multiplicative identity

—the number 1 (for the real numbers

4 open sentence

—an equation that contains a variable or variables

5 symmetric property

—when the sides of an equation are interchanged, an equivalent equation is formed ; if a=b, then b=a

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation: