Lesson details

Key learning points

  1. In this lesson, we will solve further problems involving area of triangles.

Licence

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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
Correct answer: perpendicular
slant
Q2.
Fill in the gap: The triangle will have half the area of the _______________ formed with the same dimensions.
parallel
Correct answer: parallelogram
perpendicular
slant
Q3.
Find the area of this right-angled triangle.
Correct answer: A 10cm²
B 20cm²
C 30m²
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
Correct answer: 6 cm²
Q5.
A triangle has an area of 48 mm² and a perpendicular height of 8 mm. What is the length of its base?
Correct answer: 12 mm
192 mm
24 mm
6 mm

5 Questions

Q1.
Fill in the gap: A ______________ shape can be split into two or more other shapes.
big
Correct answer: compound
multiple
yellow
Q2.
Fill in the gap: We can split the shape below into a _____________ and a triangle.
circle
Correct answer: rectangle
square
triangle
Q3.
Fill in the gap: The total area can be found by ______________ the areas of these shapes.
dividing
finding the product of
Correct answer: summing
taking away
Q4.
What is the area of this shape?
108 cm²
14.5 cm²
Correct answer: 21 cm²
24 cm²
Q5.
Find the shaded area in the shape below.
108 m²
144 m²
27 m²
Correct answer: 81 m²

Lesson appears in

UnitMaths / Area of 2-D shapes