Geometry of Triangles - Isosceles, Solve Side from Single Side (Level 1)

This math topic focuses on the geometry of isosceles triangles, specifically how to determine unknown side lengths when one side length is given. The problems belong to a broader unit dealing with both isosceles and equilateral triangles. Students are presented with images of triangles and are expected to apply geometric principles to find the length of specified sides, with multiple choice answers provided for each question. This set of problems is designed to enhance understanding of triangle properties and computation skills in a focused area of geometry.

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

Geometry of Triangles - Isosceles, Solve Side from Single Side Worksheet

Math worksheet on 'Geometry of Triangles - Isosceles, Solve Side from Single Side (Level 1)'. Part of a broader unit on 'Geometry - Isosceles and Equilateral Triangles' Learn online: app.mobius.academy/math/units/geometry_triangles_isosceles_equilateral_intro/

1

What do we know about side 'S'?

a

9

b

5

c

6

d

Unable to answer

e

11

f

8

2

What do we know about side 'S'?

a

9

b

10

c

14

d

13

e

6

f

Unable to answer

3

What do we know about side 'S'?

a

12

b

8

c

10

d

Unable to answer

e

11

f

18

4

What do we know about side 'R'?

a

11

b

12

c

7

d

8

e

Unable to answer

f

10

5

What do we know about side 'R'?

a

13

b

10

c

7

d

12

e

Unable to answer

f

6

6

What do we know about side 'R'?

a

Unable to answer

b

8

c

9

d

6

e

10

f

12

7

What do we know about side 'Q'?

a

12

b

Unable to answer

c

11

d

13

e

15

f

10