The figure below shows a quadrilateral ABCD and a mirror line M1M2

In a 4×400 m relay competition, a team of athletes each completed their round in 45 sec, 43 sec, 44 sec and 45 sec respectively. If the race started at 1:35:31 p.m., find the time when the team completed the race. (3 marks)

A vertical electric pole was erected 6.4 m from the foot of a vertical fencing pole on the same horizontal level. The fencing pole is 2 m high. The angle of elevation of the top of the electric pole from the top of the fencing pole is 30°. Determine the height of the electric pole correct to 1 decimal place. (2 marks)

A chord of a circle, 7cm long, subtends an angle of 60 degrees at the centre of the circle. Determine the area, correct to 2 decimal places, of the major segment of the circle.

A Kenyan Non-Governmental Organization (NGO) received a donation of 200000 US dollars. The money was converted into Kenyan shillings in a bank which buys and sells foreign currency as follows:

Using a ruler and a pair of compasses only, construct a parallelogram ABCD in which AB=6cm, BC=5cm and angle ADC=150 degrees

Answer

In the figure below, AB and CD are arcs of two concentric circles, centre O. Angle AOB=60 degrees and AD=BC=7cm.

​Given that sin(θ+30°)=cos2θ, find the value of cos(θ+40°). (3 marks)

Answer

​Using the grid provided below, solve the simultaneous equations.
x-4y = -5
-x+2y= 1
(3 marks)

Answer

​The sum of the interior angles of a regular polygon is 1260°. Find the size of each exterior angle of the polygon. (3 marks)

Answer

The line 2y+x=1 is perpendicular to a line L. Line L passes through point (2,-1). Determine the equation of L in the form Y = mx + c, where m and c are constants.

Answer

KCSE 2020 MATHEMATICS ALT A PAPER 1 QUESTION 5

ANSWER

KCSE 2020 MATHEMATICS ALT A PAPER 1 QUESTION 4

ANSWER

​KCSE 2020 MATHEMATICS ALT A PAPER 1 QUESTION 3

ANSWER

KCSE 2020 MATHEMATICS PAPER 1 QUESTION NUMBER 2 

ANSWER

KCSE 2020 MATHEMATICS ALT A PAPER 1 QUESTION 1

ANSWER: