Question 1 :
The lengths of two sides of a triangle are 12 cm and 15 cm.Then the length of the third side should fall between 3 cm and 27 cm?

Question 2 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ca19f59b460d7261ea83.png' /> From the above image, find angle x.

Question 3 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ca1ff59b460d7261ea8b.png' /> From the above image, find angles x and y.

Question 4 :
What can you say about the sum of an exterior angle of a triangle and its adjacent interior angle?

Question 5 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ca1ef59b460d7261ea8a.png' /> From the above image, find angles x and y.

Question 6 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ca26f59b460d7261ea95.png' /> From the above image, in triangle PQR, D is the mid-point of QR. $\overline{PD}$ is _________________.

Question 7 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ca11f59b460d7261ea77.png' /> Look at the above image and tell what type of triangle is it according to its angles.

Question 8 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cb0cf59b460d7261ebc4.png' /> In the above figure, find the value of the unknown x and y.

Question 9 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cb1df59b460d7261ebdb.png' /> In the above figure, find the value of the unknown x.

Question 10 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ca3bf59b460d7261eab2.png' /> From the above image, find the values of the unknowns x and y.

Question 11 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cb1bf59b460d7261ebd8.png' /> In the above figure, AM is a median of a triangle ABC. Is AB + BC+ CA > 2AM?

Question 12 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ca1df59b460d7261ea89.png' /> From the above image, find angles x and y.

Question 13 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cb0bf59b460d7261ebc3.png' /> In the above figure, find the value of the unknown interior angle x.

Question 14 :
An exterior angle of a triangle is of measure $70^{\circ}$ and one of its interior opposite angles is of measure $25^{\circ}$. Find the measure of the other interior opposite angle.

Question 15 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ca11f59b460d7261ea78.png' /> Look at the above image and tell what type of triangle is it according to its sides.

Question 16 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ca3ff59b460d7261eab8.png' /> From the above image, a 15 m long ladder reached a window 12 m high from the ground on placing it against a wall at a distance a. Find the distance of the foot of the ladder from the wall.

Question 17 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cb07f59b460d7261ebbe.png' /> In the above figure, PQR is a triangle and D is the midpoint of $\overleftrightarrow{QR}$. Is QM = MR ?

Question 18 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ca29f59b460d7261ea99.png' /> From the above image, in triangle XYZ, is YL an altitude in the exterior of the triangle?

Question 19 :
The foot of a ladder is 6 m away from its wall and its top reaches a window 8 m above the ground, Find the length of the ladder.

Question 20 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ca20f59b460d7261ea8d.png' /> From the above image, triangle ABC is right-angled at C. If AC = 5 cm and BC = 12 cm find the length of AB.