Answer:
C. 15
Step-by-step explanation:
<h2>
<em><u>∠ADC=∠ABC/2=30/2=15</u></em></h2>
Let n = length
let n-4 = width since it is 4 meters shorter
2( n+n-4) =72 Two of the length and width added together equal the perimeter
combine like terms
2(2n -4) = 72 Now use the distributive law on the left side of the equation
4n -8 = 72 Now add 8 to both sides
4n -8 +8 = 72 +8
4n = 80 Finally divide each side by 4
n=20
so the length is 20 and the width is 4 less or 16.
Let's see if our answer works.
20 + 16 + 20 +16 =? 72
72 =72 yes, it does. Length = 20 Width = 16
Answer:
9/1
Step-by-step explanation:
First, identify the rise and the run. Count the squares of the rise and the run. Then put the rise over the run. Hope it helps!
The value of y is 36
The value of w is -13
<h3>Calculating the value of angles </h3>
From the given question, we are to determine the value of y
From the given information,
We have that line b is parallel to line c
Then,
74° + (2y + 34)° = 180°
Solve for y
(2y + 34)° = 180° - 74°
2y° + 34° = 106°
2y° = 106° - 34°
2y° = 72°
y° = 72°/2
y° = 36°
Hence, y = 36
In the second diagram,
72° + ∠ACB + ∠BCD = 180° (<em>Sum of angles on a straight line</em>)
From the given information,
BC bisects ∠ACD
Thus,
∠ACB = ∠BCD
Then, we can write that
72° + ∠BCD + ∠BCD = 180°
72° + 2 × ∠BCD = 180°
2 × ∠BCD = 180° - 72°
2 × ∠BCD = 108°
∠BCD = 108°/2
∠BCD = 54°
Since line j is parallel to line k
Then,
(2w + 80)° = ∠BCD (<em>Corresponding angles</em>)
(2w + 80)° = 54°
2w° + 80° = 54°
2w° = 54° - 80°
2w° = -26°
w° = -26°/2
w° = -13°'
Hence, w = -13
Learn more on Calculating the value of angles here: brainly.com/question/21369105
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Give an example of a proportion that uses the numbers 2, 3, 4 and 6.
2:3 is the same as 4:6
Proportion says that two ratios (or fractions) are equal.
