CBSE 2022 | चतुर्भुजों को समझना - L1 | Understanding Quadrilaterals | CLASS 8 गणित | 8 PM |Manik Sir

If T= 2pisqrt(1/8) , then relative errors in T and l are in the ratio

If P(–2, 4), Q(4, 8), R(10, 5) and S(4, 1) are the vertices of a quadrilateral, show that it is a parallelogram.

Let L_1 be a tangent to the parabola y^(2) = 4(x+1) and L_2 be a tangent to the parabola y^(2) = 8(x+2) such that L_1 and L_2 intersect at right angles. Then L_1 and L_2 meet on the straight line :

The points (2, -2), (8, 4), (4, 6) and (-1, 1) in order are the vertices of which one of the following quadrilaterals ?

The vertices of quadrilateral ABCD are A(5,-1) B(8,3), C(4,0) and D(1,-4). Prove that ABCD is a rhombus.