1.) write an equation to find the measure of ∠srz & ∠srn. answer
DESCRIPTION
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: Find A, B, and CTRANSCRIPT
1.) Write an equation to find the measure of ∠srz & ∠srn.
Answer
#1.) Answer:
m srn = 62°Equation: 5x - 27 = 3x + 31
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: Find A, B, and C
Equation: 3b + b + b – 6 = 39 A = 27 in.B = 9 in.C = 3 in.
#2 Answer:
#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.
105 °
100 °
(3x) °92°
(2x + 40) °
(2x + 40) °
124 °
#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?
Answer
un
z
#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
10.) Write an equation to find m lun & m lud.
Answer
u
n
z
d
(3x – 35)°
(2x – 12)°
#10 Answer
m lun = 34° m lud = 146°Equation: 2x – 12 = 3x - 35
#11.) Name 3 things a trapezoid and a parallelogram have in common.
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
2
74
38
65
Answer
#12 Answer:
405because it is the alternate exterior
angle to angle 4.
#13.) If m 4 = 40°. What is the measurement of
angle 7? Explain. 1
2
74
38
65
Answer
#13 Answer:
407because it is a vertical
angle to angle 4.
#14.) If m 4 = 40°. What is the measurement of
angle 2? Explain. 1
2
74
38
65
Answer
#14 Answer:
402because it is a corresponding
angle to angle 4.
#15.) If m 4 = 40°. What is the measurement of
angle 3? Explain. 1
2
74
38
65
Answer
#15 Answer:
1403because it is supplementary
with angle 4.