Answer:
The arc length of a circle is 3.14 m or 1π m
Step-by-step explanation:
First of all we have to calculate the circumference of the circle and then extract the portion that corresponds to 90°
To solve this exercise we need to use the circumference formula of a circle:
c = circumference
r = radius = 2m
π = 3.14
c = 2π * r
we replace the known values
c = 2 * 3.14 * 2m
c = 12.56m
As we know a circle is represented with 360 ° and they tell us that the angle is 90 °, so we have to know the relationship with respect to the total
90° / 360° = 1/4
Now we multiply this number by the circumference and we will obtain the length of the arc
12.56m * 1/4 = 3.14
The arc length of a circle is 3.14 m or 1π m
An appropriate measure for ∠CDE would be
∠CDE = ∠ADE - ∠ADC
<h3>How to check for the appropriate measure of CDE.</h3>
we have the following angles as parallel BC¯, DE¯, and FG¯ also CD¯, EF¯, and GH¯.
The angles that we have to check in order to measure would be
∠ABC, ∠AEG, ∠ADC, ∠AHG, ∠ADE, ∠AFE, ∠AHG.
Read more on angles and triangles here:
brainly.com/question/25215131
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7
first we can do 26-19=7
so, x=7
Answer:
Step-by-step explanation:
b = 10
Substitute b in every equation below and compare the results
<u>A. 2(b + 4) = 16
</u>
- 2(10 + 4) = 2(14) = 28 ≠ 16, incorrect
<u>B. 2(b + 2) = 40
</u>
- 2(10 + 2) = 2(12) = 24 ≠ 40, incorrect
<u>C. 3(b - 2) = 24
</u>
- 3(10 - 2) = 3(8) = 24, correct
<u>D. 2(8 + b) = 42
</u>
- 2(8 + 10) = 2(18) = 36 ≠ 42, incorrect
<u>E. 3(b - 4) = 20</u>
- 3(10 - 4) = 3(6) = 18 ≠ 20, incorrect
