Sunday

January 25, 2015

January 25, 2015

Posted by **aleasha** on Sunday, January 23, 2011 at 2:58pm.

- math (surface area) -
**MathMate**, Sunday, January 23, 2011 at 3:02pmPut l=3a, w=a, h=2a

into your formula to get

S = 2(lw+wh+lh)

= 2(3a*a + a*2a + 3a*2a)

= 2(11a²)

= 22a²

Check my work.

Bote: The parentheses in your formula have been misplaced. The correct form is:

S=2(lw+wh+lh)

**Answer this Question**

**Related Questions**

Math - Find the surface area of rectangular pyramids 1. Length= 1.15ft Width=0....

math(again) - the ? says "a cone has the surface area of 160 sq. in. If the ...

geometry - The lateral area of a prism is 144cm^2 (lateral area is surface area ...

MATH-Stuck - For each of the following, the Surface Area is given. Calculate the...

algebra - sooo confusing... 6. (¼ + 7/8)(9/13) A81/13 B17/104 C81/104 D17/29 E17...

Math - A rectangular prism has a volume of 960cm. It's width, length, and ...

math - Find the lateral and surface area of the right rectangular prism whose ...

Math - Optimization Problem A right circular cylindrical can of volume 128tπ...

Math - Three rectangles have exactly the same area. The dimensions of each ...

math - Three rectangles have exactly the same area. The dimensions of each ...