Everything Maths Grade 10

2. a)Find an expression for the area of this figure in terms ofy. The dimensions of the figure are labelled
   5 yand 3 y+ 2. Write your answer in expanded form (not factorised).

 5 y

 3 y+2

b)Find an expression for the area of this figure in terms ofy. The figure has dimensions of 5 yand

 3 y+ 2, as labelled. Write your answer in expanded form (not factorised).

 5 y

 3 y+2

3.The figure here is a triangular prism. The height of the prism is 12 units; the triangles, which are both
right triangles, have sides which are 5, 12 and 13 units long. Find the surface area of the figure.

13

12

5

12

4.The figure here is a rectangular prism. The height of the prism is 5 units; the other dimensions of the
prism are 8 and 5 units. Find the surface area of the figure.

8

5 5

5.A cylinder is shown below. The height of the cylinder is 11 cm; the radius of the cylinder isr=6 cm,
as shown. Find the surface area of the figure. Round your answer to two decimal places.

458 13.5. Chapter summary