Question

1.In an isosceles triangle, the base angles are equal. The vertex angle is 40°. What are the base angles of the triangle? 2. Laxmi’s father is 49 year old. He is 4 years older than three times Laxmi’s age. What is Laxmi’s age?

Answer 1

Answer:

Hope this will helpful to u.....

Answer 2

Answer: 1 -> 70 both

2-> 15 year

Step-by-step explanation:

because according to triangle sum property <1+<2+<3=180

Because <1=<2

so <1+<2+<2=180

2×<2=180-40

2×<2=140;

so <2=140/2

<2=70

Because<2=<3

<3=70 also......

Ans 2:- suppose lakshi age are x

Then his father age will be 3x+4

.... (According to question 3 times of laxmi + 4 year more old )......

Because her father age are 49 year

So 3x+4=49 ,

Now 3x= 49-4

3x=45

x=45/3

x=15 year

Means Lakshmi are 15 year old.