Find the surface area of the regular pyramid 9ft and 6ft i canton find out what it is

Find two rational expressions that have the difference of 2-n/n-4

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?

Which of the following is correct interpretation of the expression -4+13