50.6k views
0 votes
A triangle has sides of length 10, 8, and y inches. Which is an expression for the perimeter of the triangle and what is the perimeter when y=7? A) 8(10+y) The perimeter is 136 inches when y=7. B) 10(y+8) The perimeter is 150 inches when y=7. C) y(10+8) The perimeter is 126 inches when y=7. (or) D) y+10+8 The perimeter is 25 inches when y=7.

User Ye Htun Z
by
8.2k points

2 Answers

1 vote
the perimeter is the sum of them all so the answer is d) 7 + 10 + 8 = 25
User Jazzie
by
7.9k points
0 votes

Answer:

Option (D) is correct.

Explanation:

Given: A triangle has sides of length 10, 8, and y inches.

To find: i) Expression for the perimeter

ii) The perimeter when
y=7

Solution: We know that the triangle has three sides, and the perimeter of a triangle is calculated by adding all the three sides.

Here, the three sides are 10, 8, and y inches.

Now, to find the expression for finding the perimeter we need to add the three sides.

So, the expression for perimeter is
y+10+8

Now, if
y=7 , the perimeter is
7+10+8=25 inches.

Hence, we get the expression for perimeter as
y+10+8 and the perimeter when
y=7 is 25 inches.

So, option (D) is correct.

User Syed Arif Iqbal
by
8.0k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories