D) bC=* 2) Fill in the following blanks with respect to the figure in the
Question 1 to prove exterior angle theorem.
(1) We know that the sum of angles in a triangle is 180 degrees. So
a+c= degrees
(ii) b and y form a linear pair. Thus,
degrees.
(ii) From () and (0)
a+=
(iv) Similarly, we can prove that
Hence the exterior angle theorem is proved.
and

Because of mourning president bush's death

Provide an equation

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )