In the figure above , TS//XY and XY = TY, ∠STZ = 34°, ∠TXY = 47°, find the angle marked n?
If the hypotenuse of a right-angled isosceles triangle is 2cm. What is the area of the triangle?
A chord drawn 5 cm away from the center of a circle of radius 13 cm. Calculate the length of the chord?
Find the radius of a sphere whose surface area is 154 cm\(^2\)?