Answer:
the fraction of surface that is not covered is 11/36
Step-by-step explanation:
To do this we first have to calculate the two surfaces
s = π * r^2
π = 3.14
r = d/2
d1 = 20
d2 = 24
r1 = 20/2
r1 = 10
r2 = 24/2
r2 = 12
s1 = π * r1^2
s1 = 3.14 * 10^2
s1 = 3.14 * 100
s1 = 314
s2 = π * r2^2
s2 = 3.14 * 12^2
s2 = 3.14 * 144
s2 = 452.16
to know the part that is not covered we simply do the s1 over the s2 and we subtract that from 1
s1 / s2 =
314 / 452.16 =
25/36
1 we subtract this
1 - 25/36 = 11/36
the fraction of surface that is not covered is 11/36
The Pythagorean identity is based from the three trigonometric identities that apply to the Pythagorean theorem. The three identities are founded on the concept that the hypotenuse is equal to the sum of the squares of the two sides of the right triangle. The identities can be determined through the substitution of sine and cosine in the right triangles measurements.
Circumferece = pi•diameter
C=pi•15 inches
It’s the second one, st=63, tu=63 and su =126
Answer:
Vennetta
Step-by-step explanation:
Length of Venetta's paper clip chain = 3 feets 5 inches
Length of Bill's paper clip chain = 39 inches
Converting both Venetta's paper clip chain length to inches only :
1 foot = 12 inches
3 feets = (12 * 3) = 36 inches
Hence,
Length of Venetta's paper clip chain in inches :
(36 + 5) inches = 41 inches
41 inches > 39 inches .
Hence, Venetta has the long clip chain.
