Question

Find the perimeter of an equilateral triangle each of whose sides is 84 cm
The perimeter of a triangle is 16 cm and two of its sides mesure 38 cm and 56 cm respectively
Find the third side​

Answer 1

Step-by-step explanation:

1. Perimeter of Equilateral triangle= 3×side

=3×84

= 262cm

Answer 2

Answer:

1. perimeter of equilateral triangle = 3×sides

=3×84=252 cm

we know that sum of three sides of triangle is 180°.

x+38+56=180°

x+94=180°

x=180°-94

x=86°

therefore, third side is 86°.

in your 2nd question perimeter is wrong.