Posted by lilman on Wednesday, April 18, 2012 at 12:15pm.
1. What is the lateral surface area of a square pyramid with side length 11.2 cm and slant height 20 cm?
2. What is the lateral surface area of a cone with radius 19 cm and slant height 11 cm?
3. What is the lateral area of the square pyramid, to the nearest whole number?
4. What is the lateral surface area of the cone, to the nearest whole number?
5. What is the surface area of a cone with diameter 28 cm and height 22 cm in terms of ?
Can someone please help I'm not understanding this I know the formulas but not exactly how to use them or where to start.
- geometry - Ms. Sue, Wednesday, April 18, 2012 at 12:16pm
Please post one of the formulas and I'll show you how to use it for a specific problem.
- geometry - lilman, Wednesday, April 18, 2012 at 12:48pm
#4 SA=LA+ 2B
#5 LA=ph(perimeter of the base * height)
#6 SA=LA+2B or 2pirh+2pir^2
#9 not sure
#10 believe is 19m
- geometry - lilman, Wednesday, April 18, 2012 at 1:07pm
wrong ones sorry!!
Believe these are the ones
- geometry - Ms. Sue, Wednesday, April 18, 2012 at 1:10pm
LA = ph
P = 4 * 11.2
LA = 44.8 * 20
LA = 896 sq. cm
- geometry - You, Monday, July 21, 2014 at 10:32am
Just took this assessment, these are all correct answers.
- geometry - Anonymous, Wednesday, May 6, 2015 at 2:53pm
No, don't listen to the person above. The correct answer for #3 is D.
I'm 100% sure.
- geometry - Anon, Tuesday, May 10, 2016 at 1:35pm
Anonymous is right, 3 is D.
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