Allenwarren Allenwarren

23-05-2021
Mathematics

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(please explain clearly, I am very tired) Find the surface area of the composite figure.

please explain clearly I am very tired Find the surface area of the composite figure class=

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ferrybukantoro ferrybukantoro

23-05-2021

Answer:

644

Step-by-step explanation:

SA=[2×(5×20 + 5×6 + 20×6)] +

[2×(4×12 + 4×6 + 12×6)] -

[ 2× 12×6]

= [2×(250)]+[2×(144)] - [144]

= 500+288-144

= 644 cm²

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