Year 9 Area of Quadrilaterals and Triangles

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A rectangular grid has 5 rows of squares with 8 squares in each row. How many squares are there in the grid altogether?

1 point

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A parallelogram measures 12 cm across the base and is 7 cm tall. What is its area?

1 point

42 cm²

96 cm²

84 cm²

19 cm²

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To find the area of a _____ we multiply length by breadth.

1 point

triangle

rectangle

cube

trapezium

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What is the area of a triangle that has a base length of 14 cm and a height of 6 cm?

1 point

84 cm²

20 cm²

38 cm²

42 cm²

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To find the area of a _____ we multiply base length by height and then divide by 2.

1 point

square

rectangle

triangle

parallelogram

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What is the area of a square of side 11 cm?

1 point

44 cm²

121 cm²

22 cm²

not enough information

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The given rectangle is made out of unit squares. Find out the area of the rectangle.

1 point

18 square units

10 square units

15 square units

19 square units

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Choose the correct formula for finding the area of a triangle.

1 point

Add all sides and divide by two

Base times the perpendicular height divided by two

Length times breadth

Add all sides

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Find the area of a square with a side measuring 8 cm

1 point

64 cm²

32 cm²

16 cm²

20 cm²

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Find the area of a triangle with a base of 14 cm and a perpendicular height of 5 cm

1 point

30 cm²

20 cm²

66 cm²

35 cm²

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Find the area of a rectangle with length of 5 cm and width of 12 cm

1 point

21 cm²

60 cm²

62 cm²

34 cm²

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The area of this triangle is

1 point

30 units²

60 units²

78 units²

65 units²

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The triangle below has an area of 22.5 cm². What is the height of the triangle?

1 point

5 cm

13.5 cm

31.5 cm

202.5 cm

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Find the area of the parallelogram shown

1 point

140 m²

200 m²

240 m²

280 m²

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Find the area of the trapezium shown.

1 point

128 cm²

252 cm²

256 cm²

324 cm²

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What happens to the area of a square if the side lengths are doubled?

1 point

The area becomes four times the area of the original square

The area becomes a quarter the area of the original square

The area becomes sixteen times the area of the original square

The area becomes one sixteenth the area of the original square

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Find the area of this parallelogram.

1 point

252 cm²

216 cm²

168 cm²

64 cm²

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Find the area of this parallelogram.

1 point

66.12 cm²

25 cm²

33.06 cm²

12.5 cm²

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Find the area of this right triangle.

1 point

32 mm²

65 mm²

32.5 mm²

227.5 mm²

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Find the area of this triangle.

1 point

194.3 m²

777.2 m²

388.6 m²

67.28 m²

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