19biniasztear
19biniasztear 19biniasztear
  • 10-06-2020
  • Mathematics
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Help for brainliest answer

Help for brainliest answer class=

Respuesta :

maempress
maempress maempress
  • 10-06-2020

Step-by-step explanation:

SA=ph+2A, that is, perimeter × height+ twice area

p=21+20+29=70cm

h=22cm

70×22=1540cm

A=1/2 ×20×21=210×2=420

1540+420=1960cm2

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