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Question 3 :
State True or False: x + 2 = 5 and 3x – 1 = 8 have the same solutions.

Question 4 :
The solution of the equation 3x + 5 = 0 is_______

Question 7 :
Set up equations and solve them to find the unknown numbers in the following case: One fifth of a number minus 4 gives 3. The number is

Question 9 :
Solve the equation it will form: One-fifth of a number minus 4 gives 3.

Question 10 :
State whether the statement is TRUE or FALSE : In case of balanced equation if we subtract the same number from both the sides of an equation, the balance remains undisturbed.

Question 11 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c922f59b460d7261e940.png' /> In the above figure, it is given that LM = ON and NL = MO. Is ∆NOM ≅ ∆MLN?

Question 12 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c931f59b460d7261e953.png' /> In the above figure, Observe and state the three pairs of equal parts in triangles ABC and DBC.Is AB = DC?

Question 13 :
The foot of a ladder is 6 m away from its wall and its top reaches a window 8 m above the ground, If the ladder is shifted in such a way that its foot is 8 m away from the wall, to what height does its top reach?

Question 14 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c919f59b460d7261e934.png' /> In the above figure, if ST = SU, then find the values of x and y.

Question 15 :
State whether the statements are True or False. If in ∆ABC and ∆DEF, AB = DE, ∠A = ∠D and BC = EF then the two triangle ABC and DEF are congruent by SAS criterion.

Question 16 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c937f59b460d7261e95c.png' /> In the above figure, points A and B are on the opposite edges of a pond. To find the distance between the two points, the surveyor makes a right-angled triangle as shown. Find the distance AB.

Question 17 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c91ef59b460d7261e93a.png' /> In the above figures, the lengths of the sides are indicated along the sides. By applying SSS congruence criterion,Is $\begin{array}{l}\Delta AOB\cong\Delta DOE\end{array}$ ?

Question 18 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c926f59b460d7261e944.png' /> In the above figures,is the given pair of triangles are congruent by SAS congruence criterion (condition)?

Question 19 :
State whether the statements are True or False. Sum of any two sides of a triangle is not less than the third side.

Question 20 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c923f59b460d7261e941.png' /> In the above figures,is the given pair of triangles are congruent by SAS congruence criterion (condition)?