Math, asked by jaromay2002973, 7 months ago

You decide you want to frame the photograph from above, but only have a frame made to hold a photograph that is 12cm by 21cm. You decide you will need to cut a paper mat to go around the photograph (like a border). What is the surface area of that border? Hint: Make a small drawing and let that guide you through the solution.

Answers

Answered by 9dxd6cjth2
0

Answer:

Step-by-step explanation:

BSMT MT1K ka po ba ng ceu

Answered by html4325
3

Answer:

Step-by-step explanation:

Given: 12 cm & 21 cm

Formula: A = a outside – a inside

A = 21 cm x 12 cm – 15 cm x 6 cm

A = 252 cm – 90 cm

A = 162 cm2

The surface area of the border is 162 cm2

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