Fill in the blanks.

Question 11 Mark

In a right-angled triangle, if one of the acute angles measures 25° then the measure of the other acute angle is …………

Answer

In a right-angled triangle, if one of the acute angles measures 25°

Question 21 Mark

In every triangle, an exterior angle = sum of the …….. interior opposite angles.

Answer

In every triangle, an exterior angle = sum of the two interior opposite angles.

Question 31 Mark

In every triangle, an exterior angle + adjacent interior angle = ………… degrees.

Answer

In every triangle, an exterior angle + adjacent interior angle = 180° degrees.

Question 41 Mark

In every triangle, the sum of (interior) angles of a triangle = ……….. right angles.

Answer

In every triangle, the sum of (interior) angles of a triangle = two right angles.

Question 51 Mark

A triangle cannot have more than ………… obtuse angle.

Answer

A triangle cannot have more than one obtuse angle.

Question 61 Mark

A triangle cannot have more than ……… right angle.

Answer

A triangle cannot have more than one right angle.

Question 71 Mark

A triangle has at least ………… acute angles.

Answer

A triangle has at least two acute angles.

MATHS Fill in the blanks.