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horsena [70]
3 years ago
14

Someone please help me! I really don’t understand anything

Mathematics
2 answers:
IgorLugansk [536]3 years ago
8 0

Imagine removing the segment SP, what is the angle m∠RST?

m∠RST = 15x -10

Then,  the segment SP divides the angle m∠RST in two, m∠RSP and m∠PST and we know the corresponding values (in terms of x obviously). Now, each line is a way to express the situation.

m∠RST = m∠RSP + m∠PST (by Angle Addition Postulate).

15x - 10 = (x +25) + (5x +10)\\

Then, with some of algebra, we obtain

15x - 10 = 5x+35

9x = 45

x = 5



7. <u><em>Adjacent angles:</em></u> Two angles are Adjacent when they have a common side and a common vertex (that is the corner point) and don't overlap.

<u><em>Opposite angles: </em></u><em> </em> When two lines intersect, four angles are formed. The angles that are directly opposite to each other are called Opposite Angles


8. m∠LMN = 2 m∠LMP. But  The Lienar Pair says that: Two angles that are adjacent (share a leg) and supplementary (add up to 180°). Then   m∠LMN + m∠LMP = 180, so

2 m∠LMP + m∠LMP = 180, then

m∠LMP = 60

valentinak56 [21]3 years ago
7 0

angle addition

rsp

pst

(x + 25)

(5x + 10)

6x + 35

i don’t know the rest

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