Predice cuántas veces sacarás un número menor que 5 si lanzas un dado estándar 100 veces. Redondea al número entero más cercano,
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Answer:
Akira needs 45 square inches of gold foil to cover the chair free including the bottom
<u>Step-by-step explanation:</u>
Total surface = surface area of the base square + area of 4 triangles
<u>Step 1: The surface area of the base square</u>
surface area of the base = surface area of the square =
where s is the side length
The the surface area of the base = = 9 square inches
<u>Step 2: The surface area of the side triangles </u>
The area of the triangle =
On substituting the values,
The area of the triangle =
The area of the triangle =
The area of the triangle = 9 square inches
Now the area of 4 triangles = 4 x 9 = 36 square inches
Thus the total surface area = 9 + 36 = 45 square inches