WILL GIVE BRAINLEIST TO WHOEVER GETS IT RIGHT
1 answer:
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Answer: first option
Step-by-step explanation:
The formula for calculate the surface area of a cone is the shown below:
Where: s is the slant height and r is the radius.
As you can see in the figure the slant height and the radius are:
s=18 cm and r=6 cm
Therefore when you substitute the values shown above into the formula, you obtain that the result is:
cm²
Answer:
8 ft
Step-by-step explanation:
the ladder will make a right angle triangle with the house. The hypotenuse of the triangle is the ladder, 20 ft, and the height of the triagnle is 18 ft.
Solve for the base of the right angle triangle using pythagorean's theorem:
c=20, a=18, b=?
round to the nearest foot,
b = 8 ft