Answer:
5 cm
Step-by-step explanation:
Given a semicircle with perimeter 25.71 cm, we are required to find the radius of the circle.
Circumference of a Semicircle
=Length of the Circular part+Length of the diameter
15 necklaces with 30 diamonds
3/6= 15/30
The distributive property states:
A(b+c)= ab + ac
You would need to find a number that multiplies both 54 and 18.
You could divide both by 2, since they are both even.
54/2= 27 18/2=9
2( 27 + 9x)
Make sure to put the x next to nine.
I hope this helps!
~kaikers
Answer:
6.5 feet
Step-by-step explanation:
Based on the Cosines Law, we have:
If we isolate b (which is our x in this problem), we have
We have
a: 2
c: 5
B: 131 (since it's the complement of the 49 degrees angle: 180 - 49).
So, we plug these numbers in the formula....
We round it up to the tenth of the unit... to get 6.5