Answer: surface area = 108.8 sq. cm
Step-by-step explanation:
A=πr(r+√h2+r2)
Answer:
108.8cm^2
Step-by-step explanation:
Surface Area
A = πr(r+ √h2+r2)
A= π3 * (3 +1/3) √64 + 9 (+ 3) = sqroot 17 +3 = 20 + (3 x 4) = π32
A= 108.7
Volume
V=πr2h/3
V= π9*8 = π72/3 = 226.28/3
V= 72.4cm^3
Additional
The cone has a radius of 3cm and height of 8cm, find total surface area of the cone.
To begin with we need to find slant height of the cone, which is determined by using Pythagoras, since the cross section is a right triangle.
l2 = h2 + r2
l2 = 64 + 9
l = √(73)
l = 8.54 cm
And the total surface area of the cone is:
SA = πr2 + πrl
SA = π · r · (r + l)
SA = π · 3 · (3 + 8.54)
SA = π x 3 . 11.54
SA = 9.42477796077 x 11.54 = 108.76 cm2
SA = 108.8cm^2
Answer:
Step-by-step explanation:
12 times 2
24 divided by 8
Then u get 3 which is 24 of 3 pans ;)
Answer:
y = 2x - 5
Step-by-step explanation:
8x - 4y = 20
The slope intercept form is
-4y = -8x + 20
y = 2x - 5
To write the equation 8x - 4y = 20 in slope-intercept form, isolate y by moving the terms around and solve for y. The slope-intercept form of the equation is y = 2x - 5.
To write the equation 8x - 4y = 20 in slope-intercept form, we need to solve for y. The slope-intercept form of an equation is y = mx + b, where m is the slope and b is the y-intercept.
First, let's isolate y by moving the 8x term to the other side of the equation:
8x - 4y = 20
-4y = -8x + 20
To isolate y, we divide both sides of the equation by -4:
y = 2x - 5
So, the equation 8x - 4y = 20 in slope-intercept form is y = 2x - 5.
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Answer:
25,095238095 = 25 2⁄21
Step-by-step explanation:
Just multiply each denominator and numerator straight across and convert to a mixed number, decimal, or whatever you want.
I am joyous to assist you anytime.