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- Find the surface area of a 10 cm × 4 cm × 3 cm brick.
Question 1:
Find the surface area of a 10 cm × 4 cm × 3 cm brick. A. 128 sq. cm
B. 164 sq. cm
Feedback Surface area = [2 (10 × 4 + 4 × 3 + 10 × 3)]sq. cm
= (2 × 82) sq. cm
= 164 sq. cm.
= (2 × 82) sq. cm
= 164 sq. cm.
C. 194 sq. cm
D. 208 sq. cm
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