If pqr~ stu what is the scale factor of pqr to stu

Since STU is smaller than PQR, the scale factor is less than 1.

Find the scale factor by dividing the known side of the smaller triangle by the same side of the larger triangle to get 4/20, which reduces to 1/5.

The scale factor is 1/5.

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)

3x + 18 = 147°

step-by-step explanation:

3x + 18 = 147°, because the value of the central angle is equal to the value of the arc formed by it.

i hope i you.