The perimeter of a triangle is 42 yards. the first side is 5 yards less than the second side, and the third side is 2 yards less than the first side. what is the length of each side?

First side = 13 yarsd

Second side = 18 yards

third side = 11 yards

Step-by-step explanation:

Let the second side of the triangle be x.

Then the first side must be

and the third side must be

We know that the perimeter of triangle = Sum of all sides .

Therefore, we have

Hence, the length of second side = 18 yards

The length of first side = 18-5=13 yards

The length of third side = 13-2=11 yards

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)