Answer:
(3) z = 99°
(4) thirty thousand, six hundred and eighty-two
Step-by-step explanation:
(3) From the diagram,
Since the triangle is an issoceles triangle, The angle of the base are equal.
Applying
180° = x+x+18 (sum of angle in a triangle)
Where x = angle of each base of the triangle
180° = 2x+18
2x = 180-18
2x = 162
x = 162/2
x = 81°
But
x+z = 180 (sum of the angle in a straight line)
z = 180-x
z = 180-81
z = 99°
(4) 30682 in words = thirty thousand, six hundred and eighty-two
