Los alumnos de 1° G han organizado una campaña para conseguir dinero y enviarlo a un proyecto de cooperación. Para ello han vendido cajas de lápices de colores. En cada una de las 7 clases de 1° Eso vendieron 7 colores cada una. ¿Cuántos lápices han vendido en total?

The radius of the circle is 4 cm and the measure of the central angle is 90° the area of the sector with a central angle measuring 90° and radius of length 4 cm is vt cm the triangle in the sector is 4 cm the area of the triangle is v/cm² the area of the segment of the circle is (471 - ) cm?

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I’m on question 7 it says a covered water tank is in the shape of a cylinder the tank has a 28 inch diameter and a height of 66 inches to the nearest square inch what is the surface area of the water tank