question 6:

A) If you build the rectangular solids and slide them together as shown, what is the

**area of the overlap**? Assume the dots are 1 cm apart.

Answer:

overlap means the part that's being covered up or where it connects.

overlap means the part that's being covered up or where it connects.

The longer rectangular prism has only one face that is going to be connected to the other rectangular prism. This side face has a height of 4 cm and a width of 3 cm.

the area of overlap is 12cm squared.

the area of overlap is 12cm squared.

A= H x W

A = 4cm x 3cm

A = 12cm squared

A = 4cm x 3cm

A = 12cm squared

formula:

2(6)(6) + 2 ( 8)(3) + 2(3)(3) + 2(8)(4) + 2(2)(3)

2(36) + 2(24) + (2(9) + 2(32) + 2(6)

72 + 48 + 18 + 64 + 12 =

TSA= 214cm squared

2(36) + 2(24) + (2(9) + 2(32) + 2(6)

72 + 48 + 18 + 64 + 12 =

TSA= 214cm squared

To calulate the surface area for the top, I cut the shape into to rectangle and found the surface area of two rectangles

2(4)(6) + 2(2)(3)

For the front view,I just caluated surface area of the front face and mulitplied it by 2

2(6)(6)

For the front view,I just caluated surface area of the front face and mulitplied it by 2

2(6)(6)

To calulate the suface of the top view, I cut the shape into to rectagles and found the suface area of them both.

2(3)(6) + 2(3)(8)

2(3)(6) + 2(3)(8)

Good job Sharmaine! Your blog post helped me understand this question a whole lot to be honest. Um, I didn't find any mistakes. Well at least I didn't spot any. hahah, well yeaaahhh good job! you did gr8 :)

ReplyDeleteoh yeah, i really like the colours! :) i really like the shades of blue that you used! haahaha, but yeah. this post was really good. i actually enjoyed reading it... and i dont like to read very much! :P

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