The sum of the interior angles of a regular polygon is 1260°. Find the size of each exterior angle of the polygon. (3 marks)
KCSE 2020 MATHEMATICS ALT A PAPER 1 QUESTION 7
AnswerThe figure below shows solid frustum of a pyramid with a square top of side 6cm and a square base of side 10cm. The slant edge of the frustum is 8cm.
a) Calculate the total surface area of the frustum (4mks)
b) Calculate the volume of the solid frustum. (3mks) c) Calculate the angle between the planes BCHG and the base EFGH. (3mks Four interior angles of a hexagon are 100, 140, 125 and 105. The fifth interior angle is four times the sixth. Find, in degrees the fifth interior angle. (3mks)The figure below is a right pyramid of rectangular base of length 12cm and width 9cm. |
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