Answer:
312cm2
Step-by-step explanation:
Area of the triangles:
A =1/2bh
A=1/2(10*12) = 1/2*120=60.
There are two triangles. 60*2=120. 120 is the area of both triangles.
Area of the rectangle:
16*12=192.
120+192=312cm2
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Collect like terms

Subtract sides 35


Divide sides by 25


Thus ;





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Step-by-step explanation:
-9×(-87)=783
783÷(-9)=-87