IGCSE Mathematics Paper-1: Specimen Questions with Answers 193 - 197 of 324

Question 193

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Short Answer▾

The plan of a rectangular garden with 4 triangular flowerbeds is shown in the diagram.

The Plan of a Rectangular Garden

State the order of rotational symmetry of the plan.

Explanation

  • The order of rotational symmetry is the number of times the shape maps onto itself during a rotation of 360 degree.
  • A rectangle has order of rotational symmetry of 2

  • 180 degree and 360 degree rotations will map it onto itself.

Question 194

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Short Answer▾

Find z when

Explanation

Here

Question 195

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Short Answer▾

From the values listed above, write down

The two which are equal.

A multiple of 9,

Explanation

  • Here find the multiple of 9 between 80 to 90
  • Here A multiple of 9 is 81 and 90.

Question 196

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Short Answer▾

Explanation

Here given the

It is a scientific notation

Here

So,

Question 197

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Short Answer▾

An athlete’s time for a race was 47.89 seconds.

Write this time correct to One decimal place.

Explanation

  • If the digit in the second decimal place is 5 or more then add 1 to the digit in the first decimal place.
  • If the digit in the second decimal place is less than 5, then leave the digit in the first decimal place as it is.

Hence,

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