Question

Find the perimeter of a triangle with side measuring 7 cm, 9cm , and 12 cm​

Answer 1

Answer:

Answer

We know perimeter of any triangle is the sum of lengths of its sider.

a) length of sides are 7cm,8cm, and 9cm

perimeter =(7+8+9)cm

=24cm

b) Triangle is equilateral with one side as 2.4m

perimeter =(2.4+2.4+2.4)m

=7.2m

c) equal side are of 12cm and other is of 9cm

perimeter =(12+12+9)cm

=33cm

Step-by-step explanation:

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Answer 2

Answer:

28 is the answer dear if Iam right thank u

7+9+12=28