Volume of square pyramid can be calculated by the formula :
V=
a is the length of base and h is the height of the pyramid.
In the given figure a= x in.and h = 
in.
Volume of pyramid given V =486 cubic inches.
Substituting these values in volume of pyramid we have:
486= 
÷ 3
Or 486=
486= 
Multiplying both sides by 12
5832 =
Or x= 18 in.
Answer:
40
Step-by-step explanation:
Any regular polygon has exterior angles = to 360 / number of sides.
so a 9-gon has 9 sides. The exterior angle = 360 / 9 = 40
Each exterior angle will be 40 degrees.
Try it with simpler n-gons. A triangle has 3 sides. The exterior angle is 360 / 3 = 120
A square has 4 sides. Each exterior angle is 360 / 4 = 90
Answer:
54
Step-by-step explanation:
Number of students travelled by bus = 331 - 7 = 324
Number of students in each bus = 324/6 = 54
Answer:
y = -2
Step-by-step explanation:
y - 2 = -4
add 2 to both sides
y - 2 + 2 = -4 + 2
y = -2
