The circumference of a circle is given by the formula C=2πr. Find r if the circumference is 396 meters and π is 22/7.
2 answers:
Answer:
The radius of the circle is 63 meters
Step-by-step explanation:
circumference of a circle is given by the formula C=2πr
It is given that,
circumference is 396 meters
<u>To find the radius of circle</u>
C=2πr π= 22/7 C = 396
2*(22/7)*r = 396
r = (396 * 7)/(2*22)
r = 63
Therefore the radius of given circle = 63 meters.
Answer:
r = 63 meters
Step-by-step explanation:
C=2πr
We know pi and C
396 = 2*22/7*r
396 = 44/7 *r
Multiply each side by 7/44 to isolate r
396*7/44 = 7/44 *44/7 *r
63 =r
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Answer:
x = 68°
Explanation:
- given ∠CBE = 22°
- ∠ABD is parallel to ∠CBE, thus has same angle of 22°
- ∠ADB is right angle and thus has 90° angle.
- total sum of interior angles in triangle is 180°
We can find x by:
x + 90° + 22° = 180°
x + 112° = 180°
x = 180°- 112°
x = 68°
Answer:
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23............hope this helps
