Year 7
These resources will be removed by end of Summer Term 2025.
Switch to our new teaching resources now - designed by teachers and leading subject experts, and tested in classrooms.
Lesson details
Key learning points
- In this lesson, we will learn to calculate the area of triangles and link the area of triangles to the area of parallelograms.
Licence
This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.
Loading...
5 Questions
Q1.
Fill in the gaps, in the correct order: The area of a parallelogram is equivalent to the area of a ____________ with the same width and _______________ height.
rectangle, slant
triangle, perpendicular
triangle, slant
Q2.
Find the area of this parallelogram.
16 cm
16 cm²
32 cm²
Q3.
Find the area of this parallelogram.
145 cm²
25 cm
50 cm
Q4.
Find the area of this parallelogram.
672 m²
84 m²
96 m²
Q5.
Find the area of this parallelogram.
0.375 m²
3.375 m²
6.75 m²
5 Questions
Q1.
Fill in the gap: We can find the area of a triangle using the width of a base and the __________ height.
parallel
parallelogram
slant
Q2.
Fill in the gap: The triangle will have half the area of the _______________ formed with the same dimensions.
parallel
perpendicular
slant
Q3.
Find the area of this right-angled triangle.
B - 20cm²
C - 30cm²
D - 60cm²
Q4.
A triangle has a base of 3cm and a perpendicular height of 4cm. What is its area?
1.5 cm²
12 cm²
2 cm²
Q5.
A triangle has an area of 48 mm² and a perpendicular height of 8 mm. What is the length of its base?
192 mm
24 mm
6 mm