Answer :
The types of triangles are:
d. Scalene
e. Isosceles
f. Isosceles
g. Equilateral
h. Scalene
i. Equilateral
Here's the type of triangle for each set of measurements:
d. 45 cm, 61 cm, 60 cm:
All sides are different lengths.
Therefore, this is a scalene triangle
e. 30 cm, 31cm, 30 cm:
Two sides have equal lengths (30 cm).
This is an isosceles triangle
f. 4 cm, 5ft, 4 cm:
We need to convert feet to the same unit as cm for comparison.
1ft = 12 inches = 2.54 cm
5ft = 5 * 2.54 cm ≈ 12.7 cm
We have two sides with equal length (4 cm) and one different length (12.7 cm).
This is also an isosceles triangle
g. 89mm, 89mm, 89mm:
All three sides have the same length.
This is an equilateral triangle, a special type of isosceles triangle where all sides are equal.
h. 9 in, 5in, 3 in:
All sides have different lengths.
This is a scalene triangle
i. 22cm, 22cm, 22in:
We need to convert inches to centimeters for comparison.
22in = 22 * 2.54 cm ≈ 55.88 cm
Comparing the converted lengths, we see all sides have equal lengths.
This is an equilateral triangle
