Please help me.

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?

Why did the ice arena get so hot after the big game (this is math related google it to find the paper

Adeposit of 5500 at 6% for 3 years equals