Answer:
11 times pi or 34.56 cm.
Step-by-step explanation:
The equation for the circumference of a circle is pi times diameter. The diameter in this case is 11. So the answer is 11 times pi or, as a decimal, approximately 34.56.
Answer:
Step-by-step explanation:
V=
1. m1 = -9, m2 = 9
2. x1 = -10, x2 = 10
3. n1 = -3, n2= 3
4. x1 = -2, x2 =2
Answer:
m∠BEC = 65°
m∠DEC = 115°
m∠DAE = 78°
m∠ECD = 40°
m∠BAD = 118°
m∠ADC = 62°
Step-by-step explanation:
m∠BEC = 65°
Opposite angles formed by intersecting lines are congruent
m∠DEC = 180 - 65 = 115°
A straight line has a degree measure of 180
m∠DAE = 78°
Opposite interior angles of two parallel lines cut by a transversal are congruent
m∠ECD = 180 - [m∠DEC + 25] = 40°
Sum of angles inside triangle ECD has a measure of 180
m∠BAD = 78 + m∠ECD = 118°
Opposite angles of a parallelogram are congruent
2(m∠BAD) + 2(m∠ADC) = 360
118 + m∠ADC = 180
m∠ADC = 62°
Sum of angles inside a parallelogram = 360°
So the equation you would have to set up would be: (3m)+(2m-5)=90.
If your wondering where I got the 90 from I got it because the question states it is a right angle.
So now you combine like terms:
3m+2m=5m
Which leaves you:
5m+(-5)=90 or 5m-5=90
Then you do the opposite operation by changing subtraction to addition:
5m-5=90
+5
(Don’t forget your do the same on the other side)
5m-5=90
+5 +5
—————-
And then your left with:
5m=95
Then you divide by 5 on both sides by creating a fraction:
5m=95
—- —-
5 5
And you get your answer:
m=19