Dani put 36 of her t shirts in her dresser if she has 90 t shirt what percent of all her t shirts did Dani put in the dresser
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Answer:
Total surface area of the pyramid =
Step-by-step explanation:
To find the surface area of the triangular- based pyramid, we will use the formula:
Surface area = Area of base + Area of the three faces
Area of base of the pyramid = Area of equilateral triangle =
Area of the slant faces of the pyramid is
Since there are 3 slant surfaces the total surface area of the pyramid =