9514 1404 393
Answer:
- vertex: 171°
- central: 9°
- exterior: 9°
Step-by-step explanation:
The central angle is equal to the exterior angle:
360°/n = 360°/42 = 8 4/7° ≈ 9°
The vertex angle is the supplement of this:
180° -8 4/7° = 171 3/7° ≈ 171°
Answer:
π²x
Step-by-step explanation:
Suppose radius of the silo = x
circumference of the silo = 2πr
= 2πx
Given that,
length of rope is equal to one-half of the circumference of the silo
l = 1/2(2πx) = πx
Formula to calculate area of grass over which the goat can graze
πl²
ππx
π²x
Answer:
77
Step-by-step explanation:
perimeter=150
lets name the length x
length=x
width=x-2
2[x±x-2]=150
2x±2x-4=150
4x=154
154÷4=77
x=77
Answer:
30.2 - 13.7=n
Step-by-step explanation:
To get how far he ran you have to subtract 30.2 from 13.7 therefore giving you 16.5 which will be the total distance he ran after lunch.