Question

What is the slant height if the surface area is 395.64 square meters? (Use 3.14 for π .)


7 m
9 m
11 m
13 m

Answer 1

----------------------------------
Formula
----------------------------------
Surface area = πr² + πrl

----------------------------------
Find slanted height, h
----------------------------------
Surface area = πr² + πrh
395.64  = (3.14)(7)² + (3.14)(7)h
395.64 = 153.86 + 21.98h
21.98h = 395.64 - 153.86
21.98h = 241.78
h = 241.78 ÷ 21.98
h = 11m

----------------------------------------------
Answer: The slanted height is 11m
-----------------------------------------------

Answer 2

Answer:

11m

Step-by-step explanation:

just did the quiz