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Solve for the surface area.
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Solve for the surface area.

Solve for the surface area.-example-1
User Robertbasic
by
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2 Answers

5 votes

Answer:

382.5

Explanation:

9x10=90

9x9=81

13.5x9=121.5

9x10=90

180+81+121.5= 382.5

User Cchana
by
4.0k points
3 votes

There are two triangles.

Area of a triangle = 1/2 x 10 x 9 = 45 square in.

45 x 2 = 90 square inches

One side is 9 x 9 = 81 square inches.

One side ix 10 x 9 = 90 square inches.

One side = 9 x 13.5 = 121.5 square inches.

Total surface area = 90 + 81 + 90 + 121.5 = 382.5 square inches.

User Jsjc
by
4.3k points
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