Question

3. In the given figure what is the value of x

4. Find the complement of each of the following angles

a) 600

b) 250

c) 720

5. Find the supplement of each of the following angles

a) 1250

b) 640

c) 380

6. Find the angle which is equal to its supplement?

7. In each of the given figures two lines l and m are cut by a transversal t.

Find whether l and m are parallel or not.​

Answer 1

$\begin{gathered}\boxed{\begin{array}{cccc}\sf Class\: Interval &\sf Frequency&\sf C.F\\\frac{\qquad \qquad \qquad \qquad}{}&\frac{\qquad \qquad \qquad \qquad}{}&\frac{\qquad \qquad \qquad \qquad\qquad}{}\\\sf 0 - 10⛳&\sf 5 &\sf 5 \\\\\sf 10 - 20 &\sf x &\sf 5+x \\\\\sf 20 - 30 &\sf 20 &\sf 25+x \\\\\sf 30 - 40 &\sf 15 &\sf 40+x \\\\\sf 40 - 50 &\sf y &\sf 40+x+y \\\\\sf 50 - 60 &\sf 5 &\sf 45 + x + y \\\\\sf Total &\sf n = 60 &\sf\end{array}}\end{gathered}$

Answer 2

Answer:

for lines l and m to be parallel , the interior angles need to be supplementary

here angle 55°+x= 180

x=180-55

x=125