Question

3. In a triangle ABC , If 2LA = 3LB = 6LC, then LB = ?​

Answer 1

Answer:

∠B=40°

Step-by-step explanation:

∠A=∠A

∠C=2∠B

∠B=2/3∠A

∠A+∠B+∠C=180

°

∠A+2/3∠A+2(2/3∠A)=180

°

∠A+2/3∠A+4/3∠A=180

°

3∠A=180

°

∠A=60

°

So, 2∠A=120°

And, 3∠B=2∠A°

∴∠B=40°

Hope it helps you. Please mark my answer as brainliest answer.

Answer 2

Answer:

LB=60

Step-by-step explanation:

∠A=∠A

∠C=2∠B

∠B=2/3∠A

∠A+∠B+∠C=180

∠A+2/3∠A+2(2/3∠A)=180

∠A+2/3∠A+4/3∠A=180

3∠A=180

∠A=60