Degree measure of an acute angle is _______.

What is the acute angle measurement?

If one of the complementary angles is 60^o, then the other angle is ______.

1/5 of a right angle is

In a right angled triangle ΔABC, ∠A = 60^o find the other two angles?

Opposite angles of a parallelogram are ______.

Two pairs of adjacent sides are equal for _______.

The shape of an instrument box is ______.

Which of the following is an abtuse angle ? 

1/3 of a right angle is