Question 1 1.1
In the diagram two circles intersect in A and C. BA is a tangent to the larger circle at
point A Straight lines ATD and BCD intersect the circles in T and D, and C and D
respectively. The larger circle passes through centre of the smaller circle.
O
B.
Let B = 1
D
1.1.1 Prove that D = 180° - 2x
1.1.2 Prove that AD BD.
1.1.3Prove that TCIL AB.
(5)

Segment an is an altitude of right δabc with a right angle at a. if ab = 2, squared 5 in and nc = 1 in, find bn, an, ac.

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %

One angle of a linear pair is 10 more than two-thirds the other angle. find the measure of both angles.