Opposite angles
of a quadrilateral: Two angles, which do not include a side in their intersection, are called the opposite angles of a quadrilateral..
of a quadrilateral: Two angles, which do not include a side in their intersection, are called the opposite angles of a quadrilateral..Vertically opposite angles
When two straight lines intersect each other at a point, the pairs of opposite angles so formed are called vertically opposite angles..
Adjacent angles
Two angles having a common vertex and a common arm, such that the other arms of these angles are on opposite sides of the common arm, are called adjacent angles. ..
Two angles having a common vertex and a common arm, such that the other arms of these angles are on opposite sides of the common arm, are called adjacent angles. ..Alternate angles
A pair of angles are said to be alternate angles if (i) both are interior angles (ii) they are on the opposite sides of the transversal and (iii) they are not adjacent angles. Alternate angles are some times also called alternate interi..
A pair of angles are said to be alternate angles if (i) both are interior angles (ii) they are on the opposite sides of the transversal and (iii) they are not adjacent angles. Alternate angles are some times also called alternate interi..Angles Summary
Summary - An acute angle has a measure less than 90 o . A Right angle has a measure of 90 o . An Obtuse angle has a measure greater than 90 o but less than 180 o . A Straight angle has a measure of 180 o . A reflex angle has a measure greater than 1..
Interior and Exterior angles of a triangle
Interior and Exterior angles of a triangle - In a triangle when we refer to an angle, we mean the angle bounded by the two sides. The three angles lie in the interior region of the triangle. These angles are called the interior angles of t..
Interior and Exterior angles of a triangle - In a triangle when we refer to an angle, we mean the angle bounded by the two sides. The three angles lie in the interior region of the triangle. These angles are called the interior angles of t..Interior and Exterior angles of a triangle In a triangle when we refer to an angle, we mean the angle bounded by the two sides. The three angles lie in the interior region of the triangle. These angles are called the interior angles of the triangle. Now observe the triangle in which the si..
In a triangle when we refer to an angle, we mean the angle bounded by the two sides. The three angles lie in the interior region of the triangle. These angles are called the interior angles of the triangle. Now observe the triangle in which the si..Angles at a Point Summary
If two adjacent angles are supplementary, their exterior arms lie in a straight line. If two lines intersect, the vertically opposite angles so formed are equal. When a number of lines meet at a point, the sum of the angles so formed is 360 ..
If two adjacent angles are supplementary, their exterior arms lie in a straight line. If two lines intersect, the vertically opposite angles so formed are equal. When a number of lines meet at a point, the sum of the angles so formed is 360 ..Lines Angles and Triangles Theorem 1
Statement - If two lines intersect, then the vertically opposite angles are congruen..
Statement - If two lines intersect, then the vertically opposite angles are congruen..To find the equation of the bisectors of the angle between ax+by+c=0 and ax1+by1+c1=0
. ax + by + c and a 1 x + b 1 y + c 1 will both be positive as C and C 1 are both positive. Now the above ratio is true for all points on SU. The equation of the angle bisector SU is ............ ( i ) Here O and P are on the opposite sides of SD. Therefore C and ax + by + c mus..
. ax + by + c and a 1 x + b 1 y + c 1 will both be positive as C and C 1 are both positive. Now the above ratio is true for all points on SU. The equation of the angle bisector SU is ............ ( i ) Here O and P are on the opposite sides of SD. Therefore C and ax + by + c mus..See what our Users say :
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