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Maths CBSE Homework Assignments
Class 9
Lines and Angles
Lines and angles II
3.
Choose the correct answer
Task:
2
m.
1
. An exterior angle of a triangle is \(105^°\) and its two interior opposite angles are equal. Each of these equal angles is
\(52\frac{1}{2}^{\circ}\)
\(72\frac{1}{2}^{\circ}\)
\(37\frac{1}{2}^{\circ}\)
\(75^{\circ}\)
2.
The angles of a triangle are in the ratio \(5 : 3 : 7\). The triangle is
an obtuse angled triangle
a right triangle
an acute angled triangle
an isosceles triangle
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