Weekly Test Mathematics OC5 and OC6, Science NL 1and 22

Which of the following is the correct equation for Pythagoras Theorem if side c is the hypotenuse?

• c = a + b

• c² = a² + b²

• b² = a² - c²

• c² = a² - b²

Find the height of an isosceles triangle which has sides of length 13cm and base length 10cm

• 12cm

• 13cm

• 11cm

• 10cm

A right angle triangle ABC has sides AC = 3m, BC = ?m, and AB = 5m. Calculate the side length of BC.

• 4m

• 5.83m

• 9m

• 6m

The height of a tower is 5000 ft, the distance from an observer to the top of the tower is 10000ft. What is the Sine ratio for the angle between the line of sight to the top of the tower and the horisontal line distance to the base of the tower?

• 2

• 1

• 0.5

• 0.707

• 2

Calculate the circumference of a circle with a diameter of 10m

• 31.426m

• 15.713m

• 62.852m

• 20m

Calculate the area of a circle with a radius of 7m.

• 12m

• 144

• 24

• 81

Find the surface area of a cuboid with the following dimensions;

Length= 8cm; Width = 6cm; Height = 5cm