Question

Friends please answer my question......

Spammers will be reported...

with explanations......​

Answer 1

Step-by-step explanation:

ANSWER:-

We need to find angle BAC.

We need angle ABC and ACB first.

Angle ABC:-

$180 - 100 = 80$

So, I subtracted 180° as it is supplementary angle.

Angle ACB:-

$180 - 115 = 65$

This, is also supplementary, so ACB is 65°.

Now, we know that the angles sum property of triangle tells us that the sum of all angles of triangle is 180°.

We can say that:-

Considering BAC AS x,

$65 + x + 80 = 180$

$145 + x = 180$

$x = 35$

So, angle BAC is 35°.

Things to Note:-

• Here, we need to note the sum of all angles of a triangle equals 180°.
• Supplementary angles sum are also equal to 180°.
• Straight lines also have an angle of 180° between the two angles.