Mastering Angles, Area, Perimeter and Volume
Mastering Angles, Area, Perimeter and Volume
What do you know about angles?
What is a straight angle also known as?
Obtuse angle
180 degrees
Acute angle
Right angle
What type of angle is less than 90 degrees?
Obtuse angle
Acute angle
Straight angle
Right angle
What angle measures exactly 90 degrees?
Obtuse angle
Right angle
Acute angle
Reflex angle
Which angle is greater than 90 degrees?
Straight angle
Acute angle
Right angle
Obtuse angle
What do you call an angle over 180 degrees?
Reflex angle
Right angle
Acute angle
Obtuse angle
Enter your question here
180
100
130
50
Enter your question here
210
135
360
120
Learning Objective
At the end of the lesson you will be able to calculate area, perimeter, and volume for different shapes, including the area of a triangle, and apply these skills to real-life problems.
E3 Use a suitable instrument to measure mass and length E3.19 Sort 2-D and 3-D shapes using properties, including lines of symmetry, length, right angles, angles, including in rectangles and triangles
L1 Calculate the area and perimeter of simple shapes including those that are made up of a combination of rectangles and Calculate the volumes of cubes and cuboids
What is Perimeter?
Perimeter is the total distance around the edge of a shape. For example, to find the perimeter of a rectangle, add together all four sides.
What is Area?
Area is the amount of space inside a shape. For rectangles and squares, multiply length by width to find the area.
Finding Area of a Triangle
To find the area of a triangle, use the formula: Area = (base × height) f7 2.
Try It Out: Quick Questions
A square has sides of 5m. What is its area?
A rectangle is 6cm by 4cm. What is its perimeter?
Area
Perimeter
What is Volume?
Volume measures how much space a 3D shape takes up. For a cuboid: Volume = length × width × height.
Exam-Style Questions
Functional Skills E3
Level 1
A rectangle has a length of 8m and a width of 5m. Calculate the area.
A triangle has a base of 10cm and a height of 6cm. Work out its area.
Level 1
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Level 1
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Entry 3
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Write down 1 thing you learned in this lesson.