ScrivnerHattie
contestada

Mari has 28 wooden cubes. She want to stack them to form a triangle. Each row will have one block fewer than the row below it. How many blocks will be on the bottom of the pyramid?

Respuesta :

scarlett24
7 cubes.
imagine that ∆ are the blocks, it should be something like this:
∆
∆∆
∆∆∆
∆∆∆∆
∆∆∆∆∆
∆∆∆∆∆∆
∆∆∆∆∆∆∆
Add up everything 28 comes.
JakeTDS
7 blocks will be at the bottom :)

Hope I helped :D

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