Find the surface area of the regular pyramid. 9 ft 6 ft I will mark brainliest if correct.​

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

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?

Could somebody me with this radical simplification?