We know that
surface area of the cone (SA)=pi*r²+pi*r*l
where
r is the radius
l is the slant height
SA=306*pi cm²
diameter=12 cm
r=12/2----> r=6 cm
SA=pi*r²+pi*r*l--------> [SA-pi*r²]=pi*r*l----> l=[SA-pi*r²]/[pi*r]
l=[306*pi-pi*6²]/[pi*6]---> [306*pi-36*pi]/[6*pi]---> 45 cm
the answer is
<span>the length of the slant height is </span>45 cm
X=3 and y=5. To solve the system algebraically, I think you just have to plug in the answers. I'm not quite sure for (b)
The figure is an illustration of laws of sines, and the distance from A to B is 2534 feet
<h3>How to determine the distance AB?</h3>
The given parameters are:
DAB = 25°
L = 1700
ACB = 15°
Start by calculating the measure of angles CAB and ABC
CAB = 180 - DAB
This gives
CAB = 180 - 25°
CAB = 155°
Also, we have:
ABC = 180 - CAB - ACB
ABC = 180 - 155 - 15
ABC = 10°
The length AB is then calculated using the following laws of sines
This gives
Make AB the subject
Evaluate
AB = 2533.8151116
Approximate
AB = 2534
Hence, the distance from A to B is 2534 feet
Read more about laws of sines at:
brainly.com/question/16955971
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Answer:
2.50*10 350+d
Step-by-step explanation:
- thats the answer up below