helpme20182 helpme20182
  • 10-03-2018
  • Mathematics
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I don't know what this is help

I dont know what this is help class=

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evgeniylevi
evgeniylevi evgeniylevi
  • 10-03-2018
Try this solution:
S=S1+S2+S3, where S1;S2;S3 - areas of rectangles and the triangle.
S1=18*8=144.
S2=(18-4-4)*7=70.
S3=0.5*(18-4-4)*(22-8-7)=35.

S=144+70+35=249 cm²
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