Hint: The y angle and the (3x - 26) angle are vertical angles. So are the (x+y) and 102 angles. Use those facts to write a two equation system and solve it for x and y. Then you…

Question

asked Jul 7, 2021 197k views

1 Answer

Akhil Penta · Answer 1 · 2021-07-13T01:20:12+0000

Answer:

$\angle IMN = 70\°$

Explanation:

Given:

$\angle IMN = y\°\\\\\angle M =(3x-26)\°\\\\\angle JIL =102\°\\\\\angle KIM = (x+y)\°$

We need to find the ∠ IMN

Solution:

Now we know that;

∠ IMN = ∠ M ( Vertically opposite angles)

Substituting the values we get;

$y =3x-26\\\\3x-y =26 \ \ \ \ equation \ 1$

Also We know that;

∠ JIL = ∠ KIM ( Vertically opposite angles)

Substituting the values we get;

$x+y =102 \ \ \ \ equation \ 2$

Now adding equation 1 and equation 2 we get

$(3x-y)+(x+y) =102+26\\\\3x-y+x+y = 128\\\\4x=128$

Dividing both side by 4 using division property of equality we get;

$(4x)/(4) = (128)/(4)\\ \\x= 32$

Now Substituting the value of 'x' in equation 2 we get;

$x+y=102\\\\32+y =102\\\\y =102-32 = 70$

Hence
$\angle IMN = 70\°$