Transcript 1.) Do I Exist? You have to be able to explain why or why not!

1.) Write an equation to find the
measure of ∠srz & ∠srn.
Answer
#1.) Answer:
m srn = 62°
Equation: 5x - 27 = 3x + 31
#2: Find A, B, and C
The perimeter of a triangle is 39 inches. Side A is
three time longer than Side B. Side C is six inches
less than Side B. Write an equation to find each
side length.
Answer
#2 Answer:
Equation: 3b + b + b – 6 = 39
A = 27 in.
B = 9 in.
C = 3 in.
#3.) Write an equation to find the measure of
the sum of the angles for the polygon below.
Answer
#3.) Answer:
Equation: d = 180(10 - 2)
1,440°
DECAGON
#4.) Chris claims that if a shape has
two sets of parallel lines, the shape
has to be a parallelogram.
Answer
#4 Answer
Chris is correct because a
rhombus, square, rectangle,
and parallelogram all have
this characteristic. Therefore,
all of them are considered
parallelograms.
#5.) Write an equation to find x and
the 3 missing angles.
(2x + 40) ° 100 °
(2x + 40) °
124 °
(3x) °
92°
105 °
#5.) Answer:
Equation:
2x + 40 + 2x + 40 + 92 + 105 + 3x + 124 + 100 = 900
x = 57
(2x + 40)° = 154°
(3x)° = 171°
#6.) Adam marked a pair of alternate interior
angles green and a pair of corresponding angles
red. Is Adam correct?
u
n
z
Answer
#6 Answer:
Adam is not correct on both parts. He
marked the pair of corresponding
angles correctly, but not the pair of
alternate interior angles. Alternate
interior angles are congruent and on
opposite sides of the transversal.
7.) Write an equation to find the m∠wrb and
m∠wrl.
Answer
#7.) Answer:
• m ∠wrb = 32˚
• m ∠wrl = 148˚
• Equation: 6x + 4 + 2x – 16 = 180
8.) Write an equation to find m∠ftb & m
∠btp.
Answer
#8.) Answer:
m ∠ftb = 107°
m ∠btp = 73°
Equation: 5x – 18 = 4x + 7
#9.) Write an equation to find
the # of sides in a polygon
whose angle measures have a
sum of 2,340°.
Answer
#9 Answer:
Equation: 2340 = 180(n – 2)
15 sides
lun

10.) Write an equation to find m
& m
lud.
d
(2x – 12)°
(3x – 35)°
z
Answer
n
u
#10 Answer
m
lun = 34°
mlud = 146°
Equation: 2x – 12 = 3x - 35
Name 3 things a
trapezoid and a
parallelogram have in
common.
#11.)
Answer
#11.) Answer:
1.) They both have 4 sides.
2.) The sums of their angles are
both 360°.
3.) They both have at least one
pair of parallel sides.
#12.) If m  4 = 40°. What
is the measurement of
angle 5? Explain.
1 5
2 6
3 7
4 8
Answer
#12 Answer:
5  40
because it is the alternate exterior
angle to angle 4.
#13.) If m  4 = 40°. What
is the measurement of
angle 7? Explain.
1 5
2 6
3 7
4 8
Answer
#13 Answer:
7  40
because it is a vertical
angle to angle 4.
#14.) If m  4 = 40°. What
is the measurement of
angle 2? Explain.
1 5
2 6
3 7
4 8
Answer
#14 Answer:
2  40
because it is a corresponding
angle to angle 4.
#15.) If m  4 = 40°. What
is the measurement of
angle 3? Explain.
1 5
2 6
3 7
4 8
Answer
#15 Answer:
3  140 
because it is supplementary
with angle 4.