Triangle DEF contains right angle E. If angle D measures 55° and its opposite side measures 7.6 units, what is the measure of side DF? Round your answer to the nearest hundredth.

DF ≈ 9.28

Step-by-step explanation:

Using the sine ratio in the right triangle

sin55° = = = ( multiply both sides by DF )

DF × sin55° = 7.6 ( divide both sides by sin55° )

DF = ≈ 9.28 ( to the nearest hundredth )

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)

the answer would be 484

step-by-step explanation:

just multiply 0.484 times 1,000 (formula)