Chapter 6 – Triangles
In Fig. 6.15, if ∆ ABC ~ ∆ DEF and their sides are of lengths (in cm) as marked along them, then find the lengths of the sides of each triangle.
05
Jul
In Fig. 6.15, if ∆ ABC ~ ∆ DEF and their sides are of lengths (in cm) as marked along them, then find the lengths of the sides of each triangle. if ∆ ABC ~ ∆ DEF and their sides are of lengths (in cm) as marked along them In Fig. 6.15 then find the [...]
An aeroplane leaves an Airport and flies due North at 300 km/h. At the same time, another aeroplane leaves the same Airport and flies due West at 400 km/h. How far apart the two aeroplanes would be after 1(1 / 2) hours?
05
Jul
An aeroplane leaves an Airport and flies due North at 300 km/h. At the same time, another aeroplane leaves the same Airport and flies due West at 400 km/h. How far apart the two aeroplanes would be after 1(1 / 2) hours? An aeroplane leaves an Airport and flies due North at 300 km/h. At [...]
Prove that if in a triangle square on one side is equal to the sum of the squares on the other two sides, then the angle opposite the first side is a right angle.
05
Jul
Prove that if in a triangle square on one side is equal to the sum of the squares on the other two sides, then the angle opposite the first side is a right angle. Prove that if in a triangle square on one side is equal to the sum of the squares on the other [...]
In Fig 6.13, OB is the perpendicular bisector of the line segment DE, FA ⊥ OB and F E intersects OB at the point C. Prove that 1 / OA + 1 / OB = 2 / OC.
05
Jul
In Fig 6.13, OB is the perpendicular bisector of the line segment DE, FA ⊥ OB and F E intersects OB at the point C. Prove that 1 / OA + 1 / OB = 2 / OC. FA ⊥ OB and F E intersects OB at the point C. Prove that 1 / OA [...]
In Fig 6.7, ∠D = ∠E and AD / DB = AE / EC. Prove that BAC is an isosceles triangle.
05
Jul
In Fig 6.7, ∠D = ∠E and AD / DB = AE / EC. Prove that BAC is an isosceles triangle. ∠D = ∠E and AD / DB = AE / EC. Prove that BAC is an isosceles triangle. In fig. 6.7 July 5, 2021 Category: Chapter 6 - Triangles , Maths , NCERT Class [...]
Hypotenuse of a right triangle is 25 cm and out of the remaining two sides, one is longer than the other by 5 cm. Find the lengths of the other two sides.
05
Jul
Hypotenuse of a right triangle is 25 cm and out of the remaining two sides, one is longer than the other by 5 cm. Find the lengths of the other two sides. Hypotenuse of a right triangle is 25 cm and out of the remaining two sides one is longer than the other by 5 [...]
Legs (sides other than the hypotenuse) of a right triangle are of lengths 16cm and 8 cm. Find the length of the side of the largest square that can be inscribed in the triangle.
05
Jul
Legs (sides other than the hypotenuse) of a right triangle are of lengths 16cm and 8 cm. Find the length of the side of the largest square that can be inscribed in the triangle. Legs (sides other than the hypotenuse) of a right triangle are of lengths 16cm and 8 cm. Find the length of [...]
It is given that triangle FED ~ triangle STU . Is it true to say that DE / ST = EF / TU ? Why?
05
Jul
It is given that triangle FED ~ triangle STU . Is it true to say that DE / ST = EF / TU ? Why? It is given that triangle FED ~ triangle STU . Is it true to say that DE / ST = EF / TU ? Why? July 5, 2021 Category: Chapter [...]
P and Q are the points on the sides DE and DF of a triangle DEF such that DP = 5 cm, DE = 15 cm, DQ= 6 cm and QF = 18 cm. Is PQ II EF? Give reasons for your answer.
05
Jul
P and Q are the points on the sides DE and DF of a triangle DEF such that DP = 5 cm, DE = 15 cm, DQ= 6 cm and QF = 18 cm. Is PQ II EF? Give reasons for your answer. DE = 15 cm DQ= 6 cm and QF = 18 cm. [...]
In triangle ABC, AB = 24 cm, BC = 10 cm and AC = 26 cm. Is this triangle a right triangle? Give reasons for your answer.
05
Jul
In triangle ABC, AB = 24 cm, BC = 10 cm and AC = 26 cm. Is this triangle a right triangle? Give reasons for your answer. AB = 24 cm BC = 10 cm and AC = 26 cm. Is this triangle a right triangle? Give reasons for your answer. In triangle ABC July [...]