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1. The area of the base of a square pyramid is 36 dm². If the height of the triangular face is 7 dm, find its total surface area.
A. 120 dm² B. 159 dm² C. 160 dm² D. 161 dm²
2. Hannah and Honney played with a beach ball in the shore. The beach ball was in the shape of a sphere with radius of 8 inches. What was the surface area of the beach ball?
A. 103.84 in² B. 173.84 in² C. 803.84 in² D. 1,803.84 in²
3. Tina received a cube shaped gift box which was 12 inches long. What is the surface area of the gift box.
A. 144 sq.in B. 864 sq.in C. 205 sq.in D. 1 864 sq.in
4. A birthday hat has a circular base of radius 8 cm and a slant height of 10 cm. What is the surface area of the birthday hat?
A. 452.16 cm² B. 593.46 cm² C. 768.58 cm² D. 876.58 cm²
5. Ashley wants to cover here cylindrical pencil holder with floral cloth. If the pencil holder is 15 cm high, and its diameter is 10 cm, how much materials are needed to cover it?
A. 628 cm² B. 593.46 cm² C. 468.58 cm² D. 376.58 cm²
Note : Please answer all this correctly. This is part of my exam and it is 40% of my grade. So please answer correctly.
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