# Ecologist At Work (Math): Question Preview (ID: 20215)

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**You have a bag 20 apples. You ate 20%. How many apples did you eat?**

a) 2

b) 6

c) 20

d) 4

**What is a PIE CHART?**

a) A bar graph showing rectangles as percentages.

b) A circle graph showing the slices in percentages.

c) A line graph showing the coordinates.

d) A table showing the percentages.

**If you run 2 km per week, then how many km did you run from June 1 to June 28?**

a) 16 km

b) 28 km

c) 8 km

d) 14 km

**If the length of a rectangle is 10 cm and the width is 5 cm, what is the AREA of the rectangle in (squared cm)?**

a) 15

b) 5

c) 25

d) 50

**If the length of a square is 10 cm, what is the AREA of the square (in squared cm)?**

a) 100

b) 20

c) 10

d) 40

**Which shape is a RHOMBUS?**

a) A shape with 4 equal sides and the opposite angles are equal.

b) A shape with 3 equal sides.

c) A shape with 4 equal sides.

d) A shape with one side shorter than the opposite side.

**You bought a package of 30 pencils. You gave your friend 10% of them. How many pencils did you give your friend?**

a) 6

b) 3

c) 15

d) 25

**If you save $2.00 per day, how much money would you have in 1 week?**

a) $10.00

b) $20.00

c) $14.00

d) $25.00

**What is the difference between AREA and PERIMETER?**

a) Area is length multiplied by width and perimeter is the sum of all the side lengths.

b) Area is length divided by width and perimeter is the product of two side lengths.

c) Area is length plus width and perimeter is the length multiplied by the width.

d) Area is length minus width and perimeter is the length plus width.

**What is the difference between a RECTANGLE and a SQUARE?**

a) A rectangle has 4 equal side lengths and a square is a four-sided shape where every angle is a right angle (90 degrees).

b) A rectangle has three (3) equal side lengths and a square is a four (4)-sides shape.

c) A rectangle is a four-sided shape where every angle is a right angle (90 degrees), and a square has 4 equal side lengths.

d) A rectangle is a four (4)-sided shape and a square has three (3) equal side lengths.

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