Answer:
Exact Area =
16pi - 32 square meters
Decimal Approx:
A = 18.3 sq m
Step-by-step explanation:
In degrees, it's 360° all the way around a circle. The 270° in the image is to show you that the small piece (the triangle and yellow segment) are in a 90° part of the circle. That is 1/4 of the circle, this helps with area two ways. We'll find 1/4 of the circle area and also, that makes the triangle base 8 and height 8. This helps us find triangle area. See image.
66° 44 and 70 make 114. 180 minus 114 makes 66
Answer:
y=a/(9+3x)
Step-by-step explanation:
Reverse: 9y+3xy=a
y(9+3x)=a
y=a/(9+3x)
Answer:
Both boys are correct. The total number of lollipops would be 42.
Step-by-step explanation:
Answer:

Step-by-step explanation:
cosx=adj/hyp
adj=
/2
hyp= r
cos(45)= (
/2)/r
/2 = (
/2)/r
multiply both sides by r
(
/2)r =
/2
divide both sides by
/2
r = 1
pythagorean theorem:
+
= 
a =
/2
b = y
c = r = 1
+
= 
= 2/4 = 0.5
0.5 +
= 1
subtract 0.5 from 1
= 0.5
= 
y = 