Calculeaza perimetrul patratului stiind lungimea laturii lui. Exprima rezultatul in unitati de masura indicate A=54mm Raspuns: Ppartrat = ?Mm, ? Cm, ?Mm

perimeter = 2*a = 2*54 mm = 108 mm

Step-by-step explanation:

For any geometrical figure, the perimeter is the sum of all his sides.

In a rectangle figure, have four sides, two of them equals: a (upper side), b (lateral side), so the perimeter will be:

perimeter = a+a+b+b = 2*(a+b)

A square is a particular case of rectangle figure, in which: a = b.

So, for a square:

perimeter = 2*(a+a) = 2*(2a) = 4*a

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)