Posted by **anonymous** on Saturday, March 15, 2014 at 9:20pm.

Find the surface area of a square pyramid with a base length of 11 cm and a slant height of 15 cm.

472 cm2

451 cm2***

781 cm2

330 cm2

Find the volume of a rectangular prism with the following dimensions:

Length = 5 mm

Base = 7 mm

Height = 3 mm

142 mm3 ***

105 mm3

126 mm3

130 mm3

- i need yur help with this.. -
**Ms. Sue**, Saturday, March 15, 2014 at 9:36pm
I agree with your first answer, but not your second answer.

- i need yur help with this.. -
**anonymous**, Saturday, March 15, 2014 at 9:52pm
Sorry. my answer for #2 was originally 105. wasn't paying attention.

- i need yur help with this.. -
**Ms. Sue**, Saturday, March 15, 2014 at 9:55pm
Yes, 105mm3 is correct.

- i need yur help with this.. -
**anonymous**, Saturday, March 15, 2014 at 9:59pm
Thank you.

- i need yur help with this.. -
**Ms. Sue**, Saturday, March 15, 2014 at 10:01pm
You're welcome.

- i need yur help with this.. -
**Reiny**, Saturday, March 15, 2014 at 10:39pm
look at my answer to your first question here

http://www.jiskha.com/display.cgi?id=1394926846

In calculating the area of the triangle, the height is not 15.

make a sketch of the triangle to see that 15 is the hypotenuse.

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