Download App

Circles [NEW] — Maths STD 9 — Question

Gujarat BoardEnglish MediumSTD 9MathsCircles [NEW]1 Mark
✓

Answer

Correct option: C.
$34^{\circ}$
(c) $34^{\circ}$
Since ABCD is a cyclic quadrilateral.
$\begin{array}{ll}\therefore & \angle A+\angle C=180^{\circ} \\
\Rightarrow & 2 x+40^{\circ}+4 x-64^{\circ}=180^{\circ} \\
\Rightarrow & 6 x=204^{\circ} \Rightarrow x=34^{\circ}\end{array}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q" from Circles [NEW]→Circles [NEW] — all question types→Maths STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

The traffic police recorded the speed $\big(\text{ in }\frac{\text{km}}{\text{h}}\big)$ of 10 motorists as 48, 52, 57, 55, 42, 39, 60, 49, 53 and 47. Later an error in recording instrument was found. If the instrument has recorded the speed $\frac{5\text{km}}{\text{h}}$ less in each case, then the correct average speed of the motorists is:
→
In a quadrilateral ABCD, $\angle\text{A}+\angle\text{C}$ is 2 times $\angle\text{B}+\angle\text{D}$ If $\angle\text{A}=140^\circ$ and $\angle\text{D}=60^\circ$ then $\angle\text{B}=$
→
Two steel sheets each of length a1 and breadth a2 are used to prepare the surfaces of two right circular cylinders - one having volume v1 and height a2 and other having volume v2 and height a1. Then:
  1. $\text{v}_1=\text{v}_2$
  2. $\text{a}_1\text{v}_1=\text{a}_2\text{v}_2$
  3. $\text{a}_1\text{v}_1=\text{a}_1\text{v}_2$
  4. $\frac{\text{v}_1}{\text{a}_1}=\frac{\text{v}_2}{\text{a}_2}$
→
If one angle of a triangle is equal to the sum of the other two angles, then the triangle is
→
A point of the form (0, b) lies on:
→
The cost of constructing a wall 8m long, 4m high and 10cm thick at the rate of ₹ 25 per m3 is:
  1. ₹ 16
  2. ₹ 80
  3. ₹ 160
  4. ₹ 320
→
The distance between the points A (-5, 12) and (7, 12) is
→
If $49\text{x}^2-\text{k}=\Big(7\text{x}+\frac{1}{3}\Big)\Big(7\text{x}-\frac{1}{3}\Big),$ than the value of 'k' is:
→
The difference between the total surface area of a cube of side 4cm and its lateral surface area is:
→
The factors of a2 - 1 - 2x - x2 are:
→