Angles
Definition - When two straight lines meet at a point they form an angle. The point at which the arms meet (O) is known as the vertex of the angle. The amount of turning from one arm (OA) to other (OB) is called the measure of the angle ( AOB) and written as h..
Definition - When two straight lines meet at a point they form an angle. The point at which the arms meet (O) is known as the vertex of the angle. The amount of turning from one arm (OA) to other (OB) is called the measure of the angle ( AOB) and written as h..Find the sum of the measures of the angles A, B, C, D and E in the fig..
Find the sum of the measures of the angles A, B, C, D and E in the figure. => 180 or 270 or 540 or 360..
Find the measures of the angles of the parallelogram.
Find the measures of the angles of the parallelogram. => x = 80°, y = 80°, z = 80° or x = 100°, y = 100°, z = 100° or x = 100°, y = 80°, z = 100° or x = 80°, y = 100°, z = 80°..
Determination of Angle of Minimum Deviation
To determine the angle of minimum deviation the side AB of the prism is made to face the ray of light. On looking through the face AC and rotating the prism table, the image of slit also turns. For a particular position of the prism, the slit becomes stationary. On further rotating the p..
To determine the angle of minimum deviation the side AB of the prism is made to face the ray of light. On looking through the face AC and rotating the prism table, the image of slit also turns. For a particular position of the prism, the slit becomes stationary. On further rotating the p..Solution of Right Angled Triangles
To solve a right angled triangle, we need to find out the unknown sides and the angles with the help of t-ratios. To find a side, usually we take such t-ratios that involve the unknown sides. In the figure, AB = 100 cm, find (i) x and (ii) ..
To solve a right angled triangle, we need to find out the unknown sides and the angles with the help of t-ratios. To find a side, usually we take such t-ratios that involve the unknown sides. In the figure, AB = 100 cm, find (i) x and (ii) ..Which of the following angles are same side interior angles?
Which of the following angles are same side interior angles? => ∠ 4 and ∠ 6 or ∠ 1 and ∠ 4 or ∠ 2 and ∠ 8 or ∠ 5 and ∠ 7..
Kite
A kite is a quadrilateral having both pairs of adjacent sides equal. Its other properties are: (i) One diagonal bisects the other diagonal at right angles. The above properties are tabulated below: * Yes in Isosceles Trapezi..
A kite is a quadrilateral having both pairs of adjacent sides equal. Its other properties are: (i) One diagonal bisects the other diagonal at right angles. The above properties are tabulated below: * Yes in Isosceles Trapezi..Estimate the measure of the angle.
Estimate the measure of the angle. => 60° or 140° or 45° or 90°..
(b) Diagonals and the angle included by them are given
AC = 7 cm, BD = 6 cm and the angle included by them is 60 o . (i) AC = 7 cm and draw its perpendicular bisector to get mid-point O. (ii) At O make COX = 60 o and produce it both ways. (iii) With O as centre and radius 3 cm cut OX at D and B. (iv) Join AB, BC,..
AC = 7 cm, BD = 6 cm and the angle included by them is 60 o . (i) AC = 7 cm and draw its perpendicular bisector to get mid-point O. (ii) At O make COX = 60 o and produce it both ways. (iii) With O as centre and radius 3 cm cut OX at D and B. (iv) Join AB, BC,..Acute angle
An angle whose measure is less then one right angle (i.e., less than 90 o ), is called an acute angle..
An angle whose measure is less then one right angle (i.e., less than 90 o ), is called an acute angle..See what our Users say :
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