Answer:

12. What formula will you use to solve the area of the rectangles?

A. A = bh

B. A = I xw

C. A = bxh

D. A = nr 2

13. What is the area of the biggest rectangle?

A. 60 dm2

B. 100 dm2

C. 120 dm2

D. 140 dm2

14. What is the area of the smallest rectangle?

A. 20 dm2

B. 40 dm2

C.50 dm2

D. 60 dm2

15. What is the area of the unshaded part?

A. 80 dm2

B. 70 dm2

C. 60 dm2

D. 50 dm2

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