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Furkat [3]
3 years ago
14

Find the surface area of the cone whose radius and height are 2cm and 4cm respectively

Mathematics
1 answer:
Mademuasel [1]3 years ago
8 0

Answer: Surface area of the cone is 40.85cm^2

Step-by-step explanation:

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A circle with area 3/2pi and central angle of 60 degrees. What is the area of the circle
Anika [276]

Answer:

28.28(simplified from 28.2743338834)

Step-by-step explanation:

area of sector= (center angle/360)*area of circle

we are already given the area of sector as 3/2pi

so

3/2pi=(60/360)*x

(x is area of circle)

3/2pi=4.71238898038

4.71238898038=1/6x

divide both sides by "1/6"

28.2743338834=x

hope this helps!

3 0
2 years ago
What is the length of segment AB?
AlekseyPX

Answer:

length of segment AB is 13

OR

AB = 13

Step-by-step explanation:

Use the Pythagorean Theorem with c being the length of segment AB.

a^2 + b^2 = c^2

5^2 + 12^2 = c^2

169 = c ^2 (square root both sides to get c by itself)

13 = c

5 0
3 years ago
Plss solve 29 for me.with the steps<br> plsssßs I am begging u
lakkis [162]
That means that the first rectangle and the first triangle ave athe same perimiter

so therefor
perimiter=sides added up
 rectangle has 4 sides bu 2 is given so double it since the other side is same legnth
rec=x+x+4
multiply 2
2x+2x+8=4x+8=perimiter
this is equal to perimiter of triangle which is
x+9+x+5+x=3x+14
therefor
4x+8=3x+14
subtract 3x from both sides
x+8=14
subtract 8 from both sides
x=6
first one x=6





second rectangle and second triangle
s+7 and 3s
2 sides
2s+14+6s=p
8s+14=p

traignel=2s+12+2s+12+2s+12=6s+36=p
they are equal so
8s+14=6s+36
subtract 6s from both sides
2s+14=36
subtract 14 from both sides
2s=22
divide both sideds by 2
s=11






the values are
pair one:
x=6

pair 2:
s=11

5 0
2 years ago
Ill give brainliest
Savatey [412]
C. For sure. Hope it helps
6 0
2 years ago
The distance of point A to the x-axis is given by the expression 4a.The distance of the reflection of point A across the x-axis
denis-greek [22]

Answer:

54

Step-by-step explanation:


5 0
3 years ago
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