You stand at point C and look at an aquarium tank. Calculate the radius of the aquarium tank.

Evaluate the integral. (sec2(t) i t(t2 1)8 j t7 ln(t) k) dt

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 areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?