Math

Do you know math?

What perimeter of triangle Each side of which is 58 centimeters?

• 174

• 19

• 61

• 1740

Square perimeter is

• А-B-C-D

• A×4

• A×B×C×D

• A+B+C+D

3+16(4×7-3+8)-6+50

• 386

• 924

• 575

• 276

What is lighter: one kg of cotton wool or one kg of iron?

• Iron

• cotton wool

• Equally

• There is no answer to this question

One hundredth of a number

What is a quarter of an hour?

Three horses ran, each ran 5 kilometers, how many kilometers did the coachman travel?

• 15 kilometers

• 3 kilometers

• 5 kilometers

• 30 kilometers