answer:
statements
1. <5 = <6
2. <4 + <5 = 180
3. <4 + <6 = 180
reasons
1. given
2. definition of linear pair
3. substitution
step-by-step explanation:
- i have written the statements and reasons seperately so just put them in the order i have
- in a proof we always put the given first
- now, we can see that <4 and <5 are "together" in a straight line, therefore they are linear pairs
- linear pairs add up to 180 (always)
- now that we have that, we can use susbtitution to get the answer want/prove what we want to prove
