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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?

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?