Find the perimeter ofi) A scalene triangle with sides 7 m, 8 m, 10 mii

1.	Find the perimeter ofi) A scalene triangle with sides 7 m, 8 m, 10 mii) An isosceles triangle with equal sides 10 cm each and third side is 7 cm.iii) An Equilateral triangle with side 6 cm.
Answer» i) Perimeter of a scalene triangle = (7 + 8 + 10) m = 25 m ii) The three sides of the isosceles triangle are 10 cm, 10 cm and 7 cm ∴ Perimeter = (10 + 10 + 7) cm = 27 cm iii) An equilateral triangle with side 6 cm. The sides of equilateral triangle are 6 cm, 6 cm and 6 cm ∴ Perimeter = (6 + 6 + 6) cm = 18 cm

Find the perimeter ofi) A scalene triangle with sides 7 m, 8 m, 10 mii) An isosceles triangle with equal sides 10 cm each and third side is 7 cm.iii) An Equilateral triangle with side 6 cm.

Answer»

i) Perimeter of a scalene triangle = (7 + 8 + 10) m = 25 m

ii) The three sides of the isosceles triangle are 10 cm, 10 cm and 7 cm

∴ Perimeter = (10 + 10 + 7) cm = 27 cm

iii) An equilateral triangle with side 6 cm.

The sides of equilateral triangle are 6 cm, 6 cm and 6 cm

∴ Perimeter = (6 + 6 + 6) cm = 18 cm