132,429 views
24 votes
24 votes
Use the diagram below to answer the

following questions.
2x - 1
x + 7
B
X-4
What is the value of x?
X =
=
What is the perimeter of triangle ABC?
The perimeter is
units.

Use the diagram below to answer the following questions. 2x - 1 x + 7 B X-4 What is-example-1
User Lukasz Ochmanski
by
2.7k points

1 Answer

23 votes
23 votes

Answer:

34

Explanation:

Since this an isosceles triangle we can say the length of AB = AC

2x - 1 = x + 7

2x - x = 7 + 1

x = 8

The perimeter is calculated by adding all side lengths

2x - 1 + x + 7 + x - 4 = Area add like terms

4x + 2 = Area replace x with the value we found

4*8+2 = 34 units square

User Bajal
by
3.0k points