This math topic focuses on the skill of calculating the perimeter of various shapes, specifically triangles. It involves using provided images and lengths to determine the total distance around the edges of given objects, such as paintings, parks, and yards. The problems present multiple-choice answers, allowing students to select the correct total perimeter from a list of options. This topic is an introductory level to learning about perimeter.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

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Triangle - Picture Intro

Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.


How long is the border around the outside of this painting?

6cm6cm5cm

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Perimeter of a Triangle - Picture Intro Worksheet

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Math worksheet on 'Perimeter of a Triangle - Picture Intro (Level 1)'. Part of a broader unit on 'Perimeter Intro' Learn online: app.mobius.academy/math/units/perimeter_intro/
1
An svg image showing a math problem
How long is the border around the outside of this painting?
a
16in
b
14in
c
25in
d
13in
e
11in
f
9in
2
An svg image showing a math problem
How long is the border around the outside of this painting?
a
15cm
b
9cm
c
17cm
d
13cm
e
14cm
f
10cm
3
An svg image showing a math problem
How long is the border around the outside of this painting?
a
17cm
b
18cm
c
8cm
d
6cm
e
16cm
f
11cm
4
An svg image showing a math problem
How long is the fence around this yard?
a
15m
b
6m
c
8m
d
18m
e
17m
f
7m
5
An svg image showing a math problem
How long is the border around the outside of this painting?
a
11cm
b
13cm
c
17cm
d
25cm
e
18cm
f
12cm
6
An svg image showing a math problem
How long is the border around the outside of this painting?
a
15cm
b
21cm
c
14cm
d
18cm
e
10cm
f
11cm
7
An svg image showing a math problem
How long is the border around the outside of this painting?
a
7cm
b
4cm
c
15cm
d
14cm
e
17cm
f
9cm