Answer:
12.71in
step explanation:
The Length of an arc given is expressed as;
A = theta/360 * 2πr
10 = 45/360 * 2 * 3.14r
10 = 1/8 * 6.28r
Cross multiply
10 * 8 = 6.28r
80 = 6.28r
r = 80/6.28
r = 12.74in
Hence the radius is 12.71in
Answer:
3/10 ÷ 7/9 = 3/10 • 9/7
Step-by-step explanation:
KCF for division.
7/9= 9/7
÷=x
Lines L and M are parallel. Therefore, angle 19x equals to the angle adjacent to angle 17x.
This means 19x + 17x = 180°
36x = 180°
x = 180°/36 = 5°
Hope that helps you :)
Answer:
Step-by-step explanation:
The equation of elevation for the dolphin is:
Answer:
The correct option is third one 51°.
Therefore,
Step-by-step explanation:
Given:
In Triangle XYZ
XY = z = 16
YZ = x = 19
ZX = y = 18
To Find
angle Z = ?
Solution:
In Triangle XYZ, Cosine Rule says
Substituting the values we get
Therefore,