Mathematics

In figure 6, what value of $Y$ will make $POQ$ a straight line,

SOLUTION
$\angle POR + \angle QOR=180^{\circ}$
$2y-25^{\circ}+3y^{\circ}+5^{\circ}=180^{\circ}$
$5y-20^{\circ}=180^{\circ}$
$5y=180^{\circ}+20^{\circ}$
$5y=200^{\circ}$
$y=\dfrac{200^{\circ}}{5}$
$=40^{\circ}$

You're just one step away

Subjective Medium Published on 09th 09, 2020
Questions 120418
Subjects 10
Chapters 88
Enrolled Students 86

Realted Questions

Q1 One Word Medium
If true then enter $1$ and if false then enter $0$
Can an acute angle be adjacent to an obtuse angle?

Asked in: Mathematics - Lines and Angles

1 Verified Answer | Published on 09th 09, 2020

Q2 Subjective Medium
In a figure If AB and CD are parallel, find the value of $x$

Asked in: Mathematics - Straight Lines

1 Verified Answer | Published on 17th 08, 2020

Q3 Subjective Medium
IN the figure l||m and n is a ttansversal such that $\angle 3:\angle 8=1 : 2.$  Find $\angle 4$   and $\angle 3$.

Asked in: Mathematics - Lines and Angles

1 Verified Answer | Published on 23rd 09, 2020

Q4 Subjective Medium
$X$ is any point inside a $\triangle DEF$ and is joined to all vertices. From point $P$ on $DX$, $PQ||DE$ is drawn which meets $EX$ at $Q$ and from $Q,QR||EF$ is drawn which meets $XF$ at $R$. Prove that $PR||DF$

Asked in: Mathematics - Lines and Angles

1 Verified Answer | Published on 23rd 09, 2020

Q5 Multiple Correct Medium
In figure, lines AB and CD intersect at O. If $\angle AOC+\angle BOE=70^o$ and $\angle BOD=40^o$, find $\angle BOE$ and reflex $\angle COE$.
• A. $\angle COE = 30^o$
• B. $\angle BOE = 110^o$
• C. $\angle BOE = 30^o$
• D. $\angle COE = 110^o$

Asked in: Mathematics - Lines and Angles

1 Verified Answer | Published on 09th 09, 2020