Fill in the blanks with acute, obtuse,right or straight :(a) An angle whose measure is less than that of a right angle is______.(b) An angle whose measure is greater than that of a right angle is ______.(c) An angle whose measure is the sum of the measures of two right anglesis _____.(d) When the sum of the measures of two angles is that of a right angle, then each one of them is ______.(e) When the sum of the measures of two angles is that of a straight angle and if one of them is acute then the other should be _______.

Explanation

a)Acute

b)Obtuse(if it is less than`180^0`)

c)Straight(`180^0`)

d)Acute, A+B=`90^0`

e)obtuse,A+B=`180^0`.