Question 1 :
In ABC, if $BC=AB$ and $\angle B=80^0$, then $\angle A$ is equal to :

Question 2 :
Find the perimeter of an isosceles right triangle with each of its congruent sides is $7\,cm$.

Question 3 :
In a $\Delta$ABC, if $AB^2\, =\, BC^2\, +\, AC^2$, then the right angle is at:

Question 4 :
If two altitudes of a triangle are equal in length, then the triangle is

Question 5 :
It is not possible to construct a triangle with which of the following sides?<br/>

Question 6 :
The perimeter of rectangle is $140$ cm. If the sides are in the ratio $3 : 4$, find the lengths of the four sides and the two diagonals

Question 7 :
Four pair of showing measurements of sides $\overline{AB}, \overline{BC}$ and $\overline{CA}$ of $\Delta ABC$ are given below.<br/>Show which of the following pair/s is/are shows right angle triangle.<br/>Pair P: AB = 25 &#160; &#160; &#160; &#160; &#160; &#160; BC = 7 &#160; &#160; &#160; &#160; &#160; &#160;AC = 24<br/>Pair Q: AB = 8 &#160; &#160; &#160; &#160; &#160; &#160; &#160;BC = 6 &#160; &#160; &#160; &#160; &#160; &#160;AC = 10<br/>Pair R:&#160;AB = 3 &#160; &#160; &#160; &#160; &#160; &#160; &#160;BC = 4 &#160; &#160; &#160; &#160; &#160; &#160;AC = 6<br/>Pair S: AB = 8 &#160; &#160; &#160; &#160; &#160; &#160; &#160;BC = 6 &#160; &#160; &#160; &#160; &#160; &#160;AC = 5<br/>

Question 8 :
Triangle ABC is right -angled at C. Find&#160;$AC, $ If $AB = 2.2 \ cm\,\, $and$\,\, BC = 1.8 \ cm$.<br/>In each case, answer correct to two place of decimal.

Question 9 :
A triangle has side lengths of $6$ inches and $9$ inches. If the third side is an integer, calculate the minimum possible perimeter of the triangle (in inches).

Question 10 :
The measures of the angles of $\triangle QRS$ are $m\angle Q = 2x + 4, m\angle R = 4x - 12,$ and $m\angle S = 3x+8.$ $QR = y + 9, RS = 2y-7$, and $QS = 3y-13.$ The perimeter of $\triangle QRS$ is:<br/>

Question 11 :
<p>If two interior&#160;angles on the same side of a transversal intersecting two parallel lines are in&#160;the ratio $3 : 7$, then the measure of the larger angle is</p>

Question 12 :
If two adjacent angles are equal, then each angle measures $90^o$.<br/>

Question 13 :
$\angle\,A$ is supplementary to $\angle\, B,\, \angle\, B$ is complementary to$\angle\, C$. If $\angle\, A\, =\, 118^\circ$, what is the measure of$\angle\, C$ ?

Question 15 :
How many degrees are there in an angle which equals one-fifth of its supplement?<br>

Question 16 :
Mark the correct alternative of the following.<br>In a $\Delta ABC$, if $2\angle A=3\angle B=6\angle C$, then the measure of the smallest angle is?<br>

Question 17 :
State true or false:<br/>If two lines intersect and if one pair of vertically opposite angles is formed by acute angles, then the other pair of vertically opposite angles will be formed by obtuse angles.<br/>

Question 19 :
State true or false:<br/>If two lines intersect and if one pair of vertically opposite angles is formed by acute angles, then the other pair of vertically opposite angles will be formed by obtuse angles.<br/>