Question

Help which one please

Answer 1

`\huge\boxed{\sf x = 2}`

Explanation:

The given figure is an isosceles triangle.

Isosceles triangle:

• A triangle having two equal sides is known as an isosceles triangle.

Statement:

• Sides opposite to equal angles are equal.

Here sides opposite to the equal angles are AB and AC.

So,

AB = AC

7 = 3x + 1

• Subtract 1 from both sides

7 - 1 = 3x

6 = 3x

• Divide both sides by 3

6/3 = x

2 = x

OR

x = 2

`\rule[225]{225}{3}`