Mathematics

# Write the complement (in degree) of each of the following angles: $77^{\circ}$

13

##### SOLUTION
As we know for becoming a complementary angle the sum of both the angles should be $90^{\circ}$

Let the complementary angle be $x$

$77^{\circ}+x=90^{\circ}$
$\Rightarrow x=13^{\circ}$

You're just one step away

One Word Medium Published on 09th 09, 2020
Questions 120418
Subjects 10
Chapters 88
Enrolled Students 87

#### Realted Questions

Q1 One Word Medium
Find the sum of ordinates of  all the points on the line $x+y=4$ that lie at a
unit distance from the line $4x+3y=10$.

Asked in: Mathematics - Lines and Angles

1 Verified Answer | Published on 09th 09, 2020

Q2 Single Correct Easy
In the figure, $AB$ is parallel to $CD$, which of the following statements is true?
• A. $b+c=180^o$
• B. $c+d=180^o$
• C. $a+b+c=360^o$
• D. $a+b=180^o$

Asked in: Mathematics - Straight Lines

1 Verified Answer | Published on 17th 08, 2020

Q3 Single Correct Medium
In $\Delta ABC$. If $x=\tan\left(\dfrac{B-C}{2}\right)\tan\dfrac{A}{2}, y=\tan\left(\dfrac{C-A}{2}\right)\tan\dfrac{B}{2}, z=\tan\left(\dfrac{A-B}{2}\right)\tan\dfrac{C}{2}$, then $x+y+z$ (in terms of $x,y,z$ only) is
• A. $2xyz$
• B. $-xyz$
• C. $\dfrac{1}{2}xyz$
• D. $xyz$

Asked in: Mathematics - Lines and Angles

1 Verified Answer | Published on 09th 09, 2020

Q4 Single Correct Medium
In the given figure, $DE\parallel BC$. If $AD=xcm, DB=(x-2)cm, AE=(x+2)cm$ and $EC=(x-1)cm$, find the value of $x$.
• A. $x=10$
• B. $x=9$
• C. $x=6$
• D. $x=4$

Asked in: Mathematics - Lines and Angles

1 Verified Answer | Published on 09th 09, 2020

Q5 Subjective Medium
Read the following two statements which are taken as axioms:
(i) If two lines intersect each other, then the vertically opposite angles are not equal.
(ii) If a ray stands on a line, then the sum of two adjacent angles so formed is equal to $180^0$.

Asked in: Mathematics - Lines and Angles

1 Verified Answer | Published on 09th 09, 2020