In the figure above, the circle has center A, and BC=AB. What is the degree measure of the marked angle?

A rectangle has four angles. What is the degree measure of each?

What is the total number of degrees of the marked angles?

In the figure above, what is the sum of the degree measures of the marked angles?

In the figure above, point D is on line AC, AB=BD=CD, and AD=15. What is the measure, in degrees, of angle BCD ? (Disregard the degree symbol when gridding your answer).

What is the degree measure, to the nearest integer, of angle ABO ?

In the diagram above, the circle has center O and diameter bar(AC) . The measure of arc AB is 120^@ , and AO=4. What is the area of the shaded region ?

In the figure given above, A is the centre of the circle and AB = BC = CD. What is the value of x ?

In the figure above, the circle with center O has bar(PQ) tangent to it at P. Find the ratio of the shaded area to the area of the circle .