109k views
5 votes
Some simple Mathematics questions for perimeter last screenshot is a continuation of the 2nd one

Some simple Mathematics questions for perimeter last screenshot is a continuation-example-1
Some simple Mathematics questions for perimeter last screenshot is a continuation-example-1
Some simple Mathematics questions for perimeter last screenshot is a continuation-example-2
Some simple Mathematics questions for perimeter last screenshot is a continuation-example-3

1 Answer

4 votes

Explanation:

it is not stated but it has to be assumed that all angles in 4. are right angles (or multiples of 90° angles). otherwise the problems are not solvable.

the perimeter is the total way around the object one time. that means it is the sum of all side lengths.

4a.

10 - 3 = 7 m

12 - 3 = 9 m

12 + 10 + 3 + 7 + 9 + 3 = 44 m

4b.

5 - 2 = 3 cm

8 + 2 = 10 cm

10 + 5 + 8 + 3 + 2 + 2 = 30 cm

4c.

5 = 5 mm

7 = 7 mm

12 - 5 - 5 = 2 mm

12 + 5 + 5 + 7 + 2 + 7 + 5 + 5 = 48 mm

4d.

9 = 9 m

2 + 4 + 2 = 8 m

9 + 8 + 9 + 2 + 3 + 4 + 3 + 2 = 40 m

4e.

3 = 3 km

10 - 4 - 2 = 4 km

10 + 3 + 4 + 5 + 4 + 5 + 2 + 3 = 36 km

4f.

2 + 3 + 2 + 3 + 2 = 12 m

5 = 5 m

3 = 3 m

7 = 7 m

12 + 7 + 2 + 5 + 3 + 3 + 2 + 3 + 3 + 5 + 2 + 7 = 54 m

2a.

15 + 8 + 15 + 8 = 46 mm

2b.

7 + 12 + 16 + 9 = 44 cm

2c.

22 + 17 + 18 + 21 + 40 = 118 m

2d.

12 + 12 + 15 = 39 cm

2e.

6 equal sides.

41 × 6 = 246 cm

2f.

2 pairs of equal sides.

2×300 + 2×700 = 600 + 1400 = 2000 mm

User Chetan Motamarri
by
8.4k points

No related questions found