If the sum of the radius of the base and height of a cylinder is 17.5cm. and the curved surface area of the cylinder is 308cm, find the total surface area
of the cylinder.

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4

Without multiplying, tell which product is larger and why. 5 × 1/3 or 5 × 2/3 a)5 × 1/3 because 1/3 is less than 2/3 b) 5 × 1/3 because 1/3 is greater than 2/3 c) 5 × 2/3 because 1/3 is less than 23 d) 5 × 23 because 1/3 is greater than 2/3

If two lines form congruent alternate interior angles with a transversal, then the lines