Look at the triangle: if tan X degrees equals three ever wore a car 6° equals Y over Z what is the value of sin X degrees

Plz which expression is equivalent to the expression below?

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?

Ineed with number 6 , explain how to get 1978