Lines, Angles, & Triangles
PSAT · Flashcards · Application
PSAT · FLASHCARDS
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QUESTION
Find
x
x
x
if corresponding angles are congruent and measure
(
7
x
+
5
)
∘
(7x+5)^\circ
(
7
x
+
5
)
∘
and
(
3
x
+
45
)
∘
(3x+45)^\circ
(
3
x
+
45
)
∘
.
QUESTION
Identify
x
x
x
if a triangle has angles
50
∘
50^\circ
5
0
∘
,
60
∘
60^\circ
6
0
∘
, and
x
∘
x^\circ
x
∘
.
QUESTION
Find
x
x
x
if a triangle has angles
2
x
2x
2
x
,
3
x
3x
3
x
, and
70
∘
70^\circ
7
0
∘
.
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ANSWER
x
=
22
x=22
x
=
22
. Triangle angles sum:
2
x
+
3
x
+
70
=
180
2x+3x+70=180
2
x
+
3
x
+
70
=
180
; solve
5
x
=
110
5x=110
5
x
=
110
.
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