Question

Emilia is painting a triangular picture frame.
The perimeter is 30 inches. If one side is 13
inches long and another side is 5 inches long,
what is the length of the other side of the
picture frame?
Adonis created a rectangular play area for his
dog in his backyard. The length of the long side
was 10 feet and the length of the short side was
5 feet. What is the total perimeter of the dog’s
play area?

Answer 1

Answer:

perimeter is equal to sum of lengths of the all side of the traingle.

so, 30 inches = 13inches + 5 inches + X inches.

Let X is the other side of the traingle.

X= 30- 13 - 5.

X= 12.

so,the lengths of the traingle are 13,. 12,. 5.

therefore 13 inches is the longest side of the traingle

2). The area of a rectangle = length × breadth

perimeter of the rectangle is 2×( length+breadth)

so,. perimeter= 2× ( 10+5)

perimeter=2×(15)

=30.

so , perimeter of the rectangle is 30 feets.