Given: mTRV = 60° mTRS = (4x)° Prove: x = 30 What is the missing reason in step 3? substitution property of equality angle addit

Question

MrRa

14 days ago

14

Given: mTRV = 60° mTRS = (4x)° Prove: x = 30 What is the missing reason in step 3? substitution property of equality angle addit

ion postulate subtraction property of equality addition property of equality

Mathematics

2 answers:

PIT_PIT [12.4K] · Answer 1 · 2026-04-05T07:31:09+03:00

PIT_PIT [12.4K]14 days ago

8 0

The correct answer is the second option.

tester [12.3K] · Answer 2 · 2026-04-05T07:32:09+03:00

The reason is rooted in the angle addition postulate. If we have the scenario where TR is a line intersecting segment VS at point R, we can establish that by applying the angle addition postulate, we can deduce that x is equal to 30. In option (1), which uses the substitution property of equality, this condition cannot be utilized correctly here. Option (3) involving the subtraction property of equality does not apply either. Lastly, option (4) regarding the addition property of equality is also inappropriate for deriving the value of x.