alleryStart learning →A farmer fences a 12 m by 8 m field all the way round. How much fence is needed?
- 32 m
- 20 m
- 96 m
- 40 m
Show answer and solution
Correct answer: D. 40 m
Going all the way round means adding all four sides: 12 + 8 + 12 + 8 = 40 m.
Olympiad (Class 5) Perimeter and Area — practice questions
Explore 66 free Perimeter and Area questions in Olympiad (Class 5) Mathematics. Open each question or exercise to read its content, reference answers and available explanation.
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Showing questions 1–30 of 66.
A farmer fences a 12 m by 8 m field all the way round. How much fence is needed?Read the answer and worked solution →A square tile has a side of 9 cm. What is the length of its boundary?Read the answer and worked solution →A square garden has sides of 7 m. What is its area?Read the answer and worked solution →A triangle has sides of 7 cm, 8 cm and 9 cm. What is its perimeter?Read the answer and worked solution →The perimeter of a square is 48 cm. What is the length of one side?Read the answer and worked solution →A rectangle has a perimeter of 36 cm and a length of 11 cm. What is its width?Read the answer and worked solution →A floor is 6 m long and 5 m wide. How many 1 m square tiles cover it exactly?Read the answer and worked solution →A floor 2 m long and 1 m wide is covered with square tiles of side 20 cm. How many tiles are needed?Read the answer and worked solution →The side of a square is doubled. How many times larger does its area become?Read the answer and worked solution →The side of a square is doubled. What happens to its perimeter?Read the answer and worked solution →A rectangle is 10 m long and 8 m wide, with a 1 m wide path just inside its edge. What is the area of the path?Read the answer and worked solution →Fencing costs Rs 25 for each metre. How much to fence a 12 m by 8 m field fully?Read the answer and worked solution →Paint costs Rs 10 for each square metre. What is the cost of painting a 5 m by 3 m wall?Read the answer and worked solution →A 5 cm square is cut out of a 9 cm by 6 cm sheet. What area of the sheet is left?Read the answer and worked solution →A 4 cm by 3 cm corner is cut from a 10 cm by 6 cm card. What is its new perimeter?Read the answer and worked solution →Two squares of side 4 cm are joined side to side to make one rectangle. What is its perimeter?Read the answer and worked solution →Four squares of side 2 cm form one bigger square, two by two. What is its perimeter?Read the answer and worked solution →A wire bent into a square of side 11 cm is reshaped into a rectangle 14 cm long. What is the width?Read the answer and worked solution →A wire 60 cm long is bent into a square. What is the area of the square?Read the answer and worked solution →Meera runs 3 times round a 100 m by 60 m ground. How far does she run?Read the answer and worked solution →A boy walks 4 times round a square park of side 250 m. How many kilometres does he walk?Read the answer and worked solution →A regular polygon with 8 equal sides has a perimeter of 56 cm. How long is each side?Read the answer and worked solution →A rhombus has four equal sides of 9 cm each. What is its perimeter?Read the answer and worked solution →An isosceles triangle has two equal sides of 10 cm and a perimeter of 29 cm. How long is the third side?Read the answer and worked solution →A regular pentagon has each side 8 cm. How long is the string needed to go round it once?Read the answer and worked solution →Every rectangle here has a perimeter of 20 cm. Which one has the greatest area?Read the answer and worked solution →Among all shapes with the same perimeter, which has the largest area?Read the answer and worked solution →Rectangles with area 36 sq cm have whole-number sides. Which has the smallest perimeter?Read the answer and worked solution →Rectangle X is 10 cm by 1 cm; square Y has 4 cm sides. Which is true?Read the answer and worked solution →Which common mistake do students make about perimeter and area?Read the answer and worked solution →
Worked practice questions
A square tile has a side of 9 cm. What is the length of its boundary?
- 18 cm
- 27 cm
- 81 cm
- 36 cm
Show answer and solution
Correct answer: D. 36 cm
All four sides are equal, so the boundary is 4 x 9 = 36 cm.
A square garden has sides of 7 m. What is its area?
- 49 sq m
- 14 sq m
- 28 sq m
- 56 sq m
Show answer and solution
Correct answer: A. 49 sq m
The area of a square is side times side, so 7 x 7 = 49 square metres.
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