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Plz help me! Find the perimeter of the shape

Answers and the shape are in the picture

Plz help me! Find the perimeter of the shape Answers and the shape are in the picture-example-1

2 Answers

1 vote

I believe the answer would be 12.4 the first choice.

User Aneesh Narayanan
by
8.1k points
4 votes

Answer:

=12.4 units

Explanation:

We can use the Pythagoras theorem to find the lengths of EF, FG, and HE

(GF)²=(ΔX)²+(Δy)²

(GF)²=(2--1)²+(4-3)²

=3²+1²

=10

GF=√10=3.16 units

(EF)²=(Δx)²+(Δy)²

=(2--1)²+(6-4)²

=3²+2²

=9+4

=13

EF=√13=3.61 units

(HE)²=(Δx)²+(Δy)²

=(-1--3)²+(6-3)²

=2²+3²

=4+9

=13

HE=√13=3.61 units

GH=(-1--3)=2 units

Perimeter =GF+EF+EH+HG

=3.16+3.61+3.61+2

=12.38 units

=12.4 units to 1 decimal place.

User Arshbot
by
8.8k points

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