Question

1. Find perimeters of a square of side 2 cm and of an equilateral triangle of side 1.5 cm.
Construct-
(a) a line segment whose length is the sum of their perimeters.
(b) a line segment whose length is difference of their perimeters.
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Answer 1

Answer:

I

1. PERIMETER OF SQUARE IS EQUAL TO SUM OF ALL THE SIDES.

THEREFORE PERIMETER IS EQUAL TO 2+2+2+2=8CM2perimeter of equilateral triangle is equal to sum of all the sides of a triangle which is equal to 1.5 + 1.5 + 1.5 CM which is equals to 4.5 CM

Answer 2

Answer:

a :- 12.5 cm

b:- 3.5 cm

Step-by-step explanation:

perimeter of square :- 4 × side

:- 4×2 cm :- 8cm

perimeter of equilateral triangle :- 3 × side

:- 3 × 1.5 cm :- 4.5 cm

a) sum of their perimeter :- 8 cm + 4.5 cm :- 12.5 cm

b) difference of their perimeter :- 8 cm - 4.5 cm :- 3.5 cm