Surface Area of A Cylinder.
As=2(3.14)rh+2(3.14)r^2
Radius: 6in
Height: 9 in
Plug it in:
2(3.14)(6)(9)+2(3.14)(6^2)
6.28(54)+6.28(36)
339.12+226.08= 565.2
Therefore, it will take about 565.2in^2 of wrapping paper to cover the whole present.
36, because the square root of 4 is 2 and the square root of 81 is 9. You multiply those and then double it to get 36.
Answer:
pyramids only have one base.
Step-by-step explanation:
polygon base
Answer: C) 163
Step-by-Step Solution:
In the Right Triangle formed to the extreme right, lets mark the angles as
∠1, ∠2 and ∠3.
Therefore, from the Figure :-
∠1 = 73°
∠2 = 90°
By Angle Sum Property :-
∠3 = 180 - (73 + 90)
∠3 = 180 - 163
=> ∠3 = 17°
The Angle which forms a Linear Pair with ∠3 is the Corresponding Angle of ∠r, and Corresponding Angles are Equal.
Therefore,
=> 180 - ∠3
= 180 - 17
=> 163°
Therefore, the Angle that forms the Linear Pair with ∠3 is 163°
This Angle is Corresponding to ∠r and hence they are Equal ie. ∠r = 163°
Hence, ∠r = 163°
