Answer:
The shaded area is 
Step-by-step explanation:
we know that
The shaded area is equal to the area of the large square minus the area of the two smaller squares
so

Calculate the shaded area
Remember that

substitute

Answer:
g/-d+4
Step-by-step explanation:
Answer:
option D
Step-by-step explanation:
option D is the correct answer of this question.
100% .
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Answer:
4 is the answer
Step-by-step explanation:
they lost 4matches
Answer: C.
Step-by-step explanation: does 15=10+5? Yes. Does 30=25+5? Yes. Does 45=40+5? Yes indeed.