Mark ( ) against the correct answer.In the given figure, side BC … - Vidyadip

MCQ

Mark $(\checkmark)$ against the correct answer.In the given figure, side $BC$ of $\triangle\text{ABC}$ is produced to $D$ such that $\angle\text{ABC}=70^\circ$ and $\angle\text{ACD}=130^\circ.$ Then, $\angle\text{BAC}={ ?}$

A
$60^\circ$
✓
$50^\circ$
C
$70^\circ$
D
$35^\circ$

✓

Answer

Correct option: B.

$50^\circ$

In $\triangle\text{ABC,}$ side $BC$ is produced to $D$
$\angle\text{ABC}=70^\circ$ and $\angle\text{ACD}=120^\circ$
Ext. $\angle\text{ACD}=\angle\text{BAC}+\angle\text{ABC}$
$\Rightarrow120^\circ=\angle\text{BAC}+70^\circ$
$\Rightarrow\angle\text{BAC}=120^\circ-70^\circ=50^\circ$

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. [1 Marks Each]" from Constructions→Constructions — all question types→MATHS STD 7 question papers→Gujarat Board STD 7 question papers→Gujarat Board question paper generator→

Similar questions

In Fig. if $AB || CD$ then the value of $x$ is:

Find the value of the expression $4x – 3$ for $x = 1$

Which of the following numbers satisfy the equation $-6 + x = -12?$

Mark against the correct answer in the following:
If $\frac{\text{x}-2}{3}=\frac{2\text{x}-1}{3}-1$, then $x =?$

Convert it into decimal $\frac{3}{10}=\ .......$

Mark against the correct answer in the following: The length of a rectangle is three times its width and its perimeter is $96\ m.$ The length is:

Mark $(\checkmark)$ against the correct answer: In a $\triangle\text{ABC},$ If $\angle\text{B}=40^\circ$ and $\angle\text{C}=35^\circ,$ then $\angle\text{A}=?$

In Fig. $AOB$ is a straight line and $4x = 5y.$ The value of $x$ is:

A polynomial having terms more than $3$ is known as:

Cube of $\big(\frac{-1}{4}\big)$ is: