BC
5. P, Q, R and S are respectively the mid-points of sides AB, BC, CD and DA of quadrilateral ABCD in which AC = BD and AC ⊥ BD. Prove that PQRS is a square.
01
Jul
5. P, Q, R and S are respectively the mid-points of sides AB, BC, CD and DA of quadrilateral ABCD in which AC = BD and AC ⊥ BD. Prove that PQRS is a square. -q 5. P BC CD and DA of quadrilateral ABCD in which AC = BD and AC ⊥ BD. Prove [...]
4. P, Q, R and S are respectively the mid-points of the sides AB, BC, CD and DA of a quadrilateral ABCD such that AC ⊥ BD. Prove that PQRS is a rectangle.
01
Jul
4. P, Q, R and S are respectively the mid-points of the sides AB, BC, CD and DA of a quadrilateral ABCD such that AC ⊥ BD. Prove that PQRS is a rectangle. -q 4. P BC CD and DA of a quadrilateral ABCD such that AC ⊥ BD. Prove that PQRS is a rectangle. [...]
3. P, Q, R and S are respectively the mid-points of the sides AB, BC, CD and DA of a quadrilateral ABCD in which AC = BD. Prove that PQRS is a rhombus.
01
Jul
3. P, Q, R and S are respectively the mid-points of the sides AB, BC, CD and DA of a quadrilateral ABCD in which AC = BD. Prove that PQRS is a rhombus. -q 3. P BC CD and DA of a quadrilateral ABCD in which AC = BD. Prove that PQRS is a rhombus. [...]
Find the area of the shaded region in given Fig. where arcs drawn with centres A,B,C and D intersect in pairs at mid-points P,Q,R and S of the sides AB,BC,CD and DA, respectively of a square ABCD (Use π=3.14).
06
Dec
Find the area of the shaded region in given Fig. where arcs drawn with centres A,B,C and D intersect in pairs at mid-points P,Q,R and S of the sides AB,BC,CD and DA, respectively of a square ABCD (Use π=3.14). -q B BC C and D intersect in pairs at mid-points P CD and DA Find [...]
3. ABCD is a rectangle and P, Q, R and S are mid-points of the sides AB, BC, CD and DA respectively. Show that the quadrilateral PQRS is a rhombus.
15
Oct
3. ABCD is a rectangle and P, Q, R and S are mid-points of the sides AB, BC, CD and DA respectively. Show that the quadrilateral PQRS is a rhombus. -q 3. ABCD is a rectangle and P BC CD and DA respectively. Show that the quadrilateral PQRS is a rhombus. R and S are [...]
2. ABCD is a rhombus and P, Q, R and S are the mid-points of the sides AB, BC, CD and DA respectively. Show that the quadrilateral PQRS is a rectangle.
15
Oct
2. ABCD is a rhombus and P, Q, R and S are the mid-points of the sides AB, BC, CD and DA respectively. Show that the quadrilateral PQRS is a rectangle. -q 2. ABCD is a rhombus and P BC CD and DA respectively. Show that the quadrilateral PQRS is a rectangle. R and S [...]
1. ABCD is a quadrilateral in which P, Q, R and S are mid-points of the sides AB, BC, CD and DA (see Fig 8.29). AC is a diagonal. Show that: (i) SR || AC and SR = 1/2 AC (ii) PQ = SR (iii) PQRS is a parallelogram.
15
Oct
1. ABCD is a quadrilateral in which P, Q, R and S are mid-points of the sides AB, BC, CD and DA (see Fig 8.29). AC is a diagonal. Show that: (i) SR || AC and SR = 1/2 AC (ii) PQ = SR (iii) PQRS is a parallelogram. -q 1. ABCD is a quadrilateral [...]
ABCD is a rectangle formed by the points A(−1,−1), B(−1,4), C(5,4) and D(5,−1). P,Q,R and S are the mid-points of AB, BC, CD and DA respectively. Is the quadrilateral PQRS a square? a rectangle? or a rhombus? Justify your answer.
05
Oct
ABCD is a rectangle formed by the points A(−1,−1), B(−1,4), C(5,4) and D(5,−1). P,Q,R and S are the mid-points of AB, BC, CD and DA respectively. Is the quadrilateral PQRS a square? a rectangle? or a rhombus? Justify your answer. -q −1 −1). P 4 4) and D(5 ABCD is a rectangle formed by the [...]
Figure shows three isotherms at temperature T1=4000k, T2 = 2000k, T3 = 1000k. When one mole of an ideal monoatomic gas is taken through the paths AB, BC, CD and DA, find the change in internal energy
02
Sep
Figure shows three isotherms at temperature T1=4000k, T2 = 2000k, T3 = 1000k. When one mole of an ideal monoatomic gas is taken through the paths AB, BC, CD and DA, find the change in internal energy BC CD and DA Figure shows three isotherms at temperature T1=4000k find the change in internal energy T2 [...]