Area of compound shapes with missing lengths

Question 1

An L-shape is made from a big rectangle, 14 m by 8 m, with a small rectangle, 10 m by 4 m, cut from one corner. What is its area?

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Question 2

An L-shaped room: the bottom wall is 12 m, the left wall is 8 m, the top wall is 10 m and the right wall is 4 m. The other two walls are not labelled. What is the floor area?

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Question 3

An L-shape is made from a big rectangle, 12 m by 6 m, with a small rectangle, 6 m by 4 m, cut from one corner. What is its area?

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Question 4

An L-shaped room: the bottom wall is 13 m, the left wall is 12 m, the top wall is 9 m and the right wall is 7 m. The other two walls are not labelled. What is the floor area?

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Question 5

An L-shape is made from a big rectangle, 14 m by 6 m, with a small rectangle, 11 m by 3 m, cut from one corner. What is its area?

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Question 6

An L-shaped room: the bottom wall is 7 m, the left wall is 10 m, the top wall is 3 m and the right wall is 8 m. The other two walls are not labelled. What is the floor area?

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Question 7

An L-shape is made from a big rectangle, 12 m by 8 m, with a small rectangle, 6 m by 6 m, cut from one corner. What is its area?

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Question 8

An L-shaped room: the bottom wall is 7 m, the left wall is 7 m, the top wall is 5 m and the right wall is 5 m. The other two walls are not labelled. What is the floor area?

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Question 9

An L-shape is made from a big rectangle, 12 m by 9 m, with a small rectangle, 6 m by 4 m, cut from one corner. What is its area?

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Question 10

An L-shaped room: the bottom wall is 8 m, the left wall is 6 m, the top wall is 4 m and the right wall is 4 m. The other two walls are not labelled. What is the floor area?

Answer 

Question 11

An L-shape is made from a big rectangle, 12 m by 10 m, with a small rectangle, 8 m by 3 m, cut from one corner. What is its area?

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Question 12

An L-shaped room: the bottom wall is 8 m, the left wall is 10 m, the top wall is 6 m and the right wall is 6 m. The other two walls are not labelled. What is the floor area?

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Question 13

An L-shape is made from a big rectangle, 7 m by 12 m, with a small rectangle, 2 m by 2 m, cut from one corner. What is its area?

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Question 14

An L-shaped room: the bottom wall is 9 m, the left wall is 6 m, the top wall is 3 m and the right wall is 4 m. The other two walls are not labelled. What is the floor area?

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Question 15

An L-shape is made from a big rectangle, 7 m by 5 m, with a small rectangle, 5 m by 2 m, cut from one corner. What is its area?

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Question 16

An L-shaped room: the bottom wall is 14 m, the left wall is 11 m, the top wall is 6 m and the right wall is 6 m. The other two walls are not labelled. What is the floor area?

Answer