All categories

2 years ago

A square has an area of 9 cm². Find its perimeter

Mathematics

2 answers:

dlinn [17]2 years ago

8 0

Answer:

Step-by-step explanation:

area is base x height. 3×3 is 9. all sides of a square are equal so 3+3+3+3= the perimeter which is 12.

NeTakaya2 years ago

4 0

Answer:

Step-by-step explanation:

A square having an area of 9 cm² means it’s side lengths must be equal to √9 which is 3 now to find the perimeter we multiply 3 by 4 as a square has 4 sides:

3×4=12

You might be interested in

Please help with my math

GuDViN [60]

Answer:

its 80

...............

6 0

3 years ago

Jayden and Pedro go to lunch. If the meal costs $25.30 and the meal tax is 8%, how much is the bill?

almond37 [142]

Answer:

$27.324

Step-by-step explanation:

$25.30 • $1.08 = $27.324

5 0

2 years ago

Twenty-eight people in student council are running for the offices of president and vice-president. In how many different ways c

gulaghasi [49]

Answer: 756

Step-by-step explanation:

The president can be elected in 28 different ways. After a student is elected president, there are 27 students left to elect a vice president from. So there are 28 x 27 = 756 different arrangements.

8 0

2 years ago

How many sides does a regular polygon have with one central of 18 degrees?

Natalka [10]

All of the centra angles in a regular polygon must add up to 360 degrees. Also, because you're told that it is a regular polygon, the "regular" indicates that all of the central angles will be the same. Divide 360 degrees by 18 degrees to get the number of central angles, which is the same as the number of sides. 360/18 = 20. Therefore, the polygon has 20 sides. Hope that helps!

7 0

2 years ago

What’s 93+(68 + 7) properties

elena55 [62]

Answer:

93+(68+7)= 168

Step-by-step explanation:

You have to answer the problem in the parenthesis and then add 93.

6 0

2 years ago