Question

15 If 3 angles A,B & C of a triangle ABC are in a ratio of 8:4:3 ,then find the measure of angle A.​

Answer 1

Answer:

– Addition and multiplication are commutative for integers, i.e., a + b = b + a and a × b = b × a for any two integers a and b. – Addition and multiplication are associative for integers, i.e., (a + b) + c = a + (b + c) and (a × b) × c = a × (b × c) for any three integers a, b and c.

Answer 2

Step-by-step explanation:

We have two important pieces of information that help us answer the question:

The three angles have 2+3+4 = 9 shares among them.

The angles of a triangle sum to 180 degrees.

So how large is each share? If 9 equal shares sum to 180, each share is 180/9 or 20 degrees.

That means the three angles are:

• 2*20=40 degrees
• 3*20=60 degrees
• 4*20=80 degrees

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