Solve for the surface area.
2 answers:
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.
Answer:
382.5
Step-by-step explanation:
9x10=90
9x9=81
13.5x9=121.5
9x10=90
180+81+121.5= 382.5
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