Answer:
10. 60 in^2
11. 27 cm^2
12. 24 cm^2
13. 4 in^2
14. 24 cm^2
Explanation:
The applicable formulas are ...
trapezoid area: (1/2)(b1 +b2)h
triangle area: (1/2)bh
rectangle area: bh
square area: s^2
where b, b1, b2 are base lengths, h is height, s is side length.
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Fill in the numbers and do the arithmetic.
10) A = (1/2)(10 +14)(5) = 60 . . . in^2
11) A = (1/2)(6 cm)(9 cm) = 27 cm^2
12) A = (8 cm)(3 cm) = 24 cm^2
13) A = (2 in)^2 = 4 in^2
14) A = (1/2)(9 +7)(3) = 24 . . . cm^2