Question

Two side of a triangle are 25 cm and 30cm .find its third side if perimeter of the triangle is 100cm.​

Answer 1

ANSWER:-

44cm

GIVEN:-

first side = 25cm

second side = 30cm

Perimeter = 100cm

TO FIND:-

third side

PROOF:-

Third side = perimeter - (first side + second side)

= 100cm - (25cm + 30cm)

= 100cm - 55cm

= 44cm

Therefore, the measure of the third side is 44cm.

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Answer 2

Step-by-step explanation:

-three sides of a triangle are 25,30,&x respectively.

-perimeter of the triangle=100cm

-perimeter of the triangle =a+b+3 or sum of all sides.

-Now,

25+30+x = 100

55+x = 100

x = 100-55

x = 45

-So the third side of the triangle is =x=45