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SonuNewbie

Asked: August 10, 2021In: NCERT Class 9th Maths

BE and CF are two equal altitudes of a triangle ABC. Using RHS congruence rule, prove that the triangle ABC is isosceles. Q.4

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Find this important question of ncert class 9th of chapter triangles .Sir please help me to find out the easiest ...Read more

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mehakNewbie

Asked: June 17, 2023In: CBSE

20. Determine graphically whether the system of equations x – 2y = 2, 4x – 2y = 5 is consistent or in-consistent.

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What does consistent or inconsistent means? How to determine if an equation is graphically consistent or inconsistent? Class 10th, rd sharma

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mehakNewbie

Asked: July 13, 2023In: CBSE

13. On the same side of a tower, two objects are located. When observed from the top of the tower, their angles of depression are 45° and 60°. If the height of the tower is 150 m, find the distance between the objects.

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Answer the following questions, using trigonometry rules. Class 10th CBSE, Rd Sharma, some applications of trigonometry

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Deepak BoraNewbie

Asked: July 10, 2020In: CBSE

Trigonometry

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A circus artist is climbing a 20 m long rope, which is tightly stretched and tied from the top of ...Read more

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Deepak BoraNewbie

Asked: July 26, 2020In: CBSE

A solid iron pole consists of a cylinder of height 220 cm and base diameter 24 cm, which is surmounted by another cylinder of height 60 cm and radius 8 cm. Find the mass of the pole, given that 1 cm³ of iron has approximately 8 gm mass. (Use ∏ = 3·14)

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CBSE 10th Class past year question paper Year 2019 SET 1, Code umber- 30/2/1 Question number – 25

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Deepak BoraNewbie

Asked: July 30, 2020In: CBSE

In the formula 𝑥 = 𝑎 + ( ∑ 𝑓𝑖𝑢𝑖 / ∑ 𝑓𝑖 ) × ℎ , 𝑢𝑖 = ‘ _______________’

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CBSE 10th Class Mathematics Past year question paper Year 2020 SET 1, Code Number – 30/5/1 Fill in the blanksRead more

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Deepak BoraNewbie

Asked: July 31, 2020In: CBSE

For an A.P., it is given that the first term (a) = 5, common difference (d) = 3 and the n∧th term (an) = 50. Find n and sum of first n terms (Sn) of the A.P

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CBSE 10th Class Mathematics Past year question paper Year 2020 SET 1, Code Number – 30/5/1 Question Number – 31 Arithmetic ...Read more

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BE and CF are two equal altitudes of a triangle ABC. Using RHS congruence rule, prove that the triangle ABC is isosceles. Q.4

20. Determine graphically whether the system of equations x – 2y = 2, 4x – 2y = 5 is consistent or in-consistent.

13. On the same side of a tower, two objects are located. When observed from the top of the tower, their angles of depression are 45° and 60°. If the height of the tower is 150 m, find the distance between the objects.

Trigonometry

A solid iron pole consists of a cylinder of height 220 cm and base diameter 24 cm, which is surmounted by another cylinder of height 60 cm and radius 8 cm. Find the mass of the pole, given that 1 cm³ of iron has approximately 8 gm mass. (Use ∏ = 3·14)

In the formula 𝑥 = 𝑎 + ( ∑ 𝑓𝑖𝑢𝑖 / ∑ 𝑓𝑖 ) × ℎ , 𝑢𝑖 = ‘ _______________’

For an A.P., it is given that the first term (a) = 5, common difference (d) = 3 and the n∧th term (an) = 50. Find n and sum of first n terms (Sn) of the A.P