# Surface Area: Further problem solving

In this lesson, we will further our problem solving with surface area of spheres, cones and pyramids. In these more complicated examples we will, for example, deduce measures of length when provided with the surface area.

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.Which shape shows a frustum?

1/3

Q2.Work out the volume of the frustum. Round your answer to 1 decimal place.

2/3

Q3.Work out the volume of the frustum. Round your answer to 1 decimal place.

3/3

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.Which shape shows a frustum?

1/3

Q2.Work out the volume of the frustum. Round your answer to 1 decimal place.

2/3

Q3.Work out the volume of the frustum. Round your answer to 1 decimal place.

3/3

# Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

• Click "Close Video"
• Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

# Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

Quiz:

# Surface area further problem solving

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.Work out the slant height of this cone.

1/3

Q2.For the cone in question 1, work out the surface area and choose which is the correct answer in terms of pi.

2/3

Q3.The diagram shows a sphere and a cube.The surface area of the cube is equal to the surface area of the sphere. Work out the radius of the sphere rounded to 1 decimal place.

3/3

Quiz:

# Surface area further problem solving

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.Work out the slant height of this cone.

1/3

Q2.For the cone in question 1, work out the surface area and choose which is the correct answer in terms of pi.

2/3

Q3.The diagram shows a sphere and a cube.The surface area of the cube is equal to the surface area of the sphere. Work out the radius of the sphere rounded to 1 decimal place.

3/3

# Lesson summary: Surface Area: Further problem solving

## Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Walk

On the spot:
Dance