Question

Two sides of a triangle are42cmand 36cm. If the perimeter is 98cmfind the 3rd side? Help me ps?

Answer 1

Answer:

56⅔

Step-by-step explanation:

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Answer 2

Answer:

20

Step-by-step explanation:

the perimeter is 98 and the 2 sides are 42 and 36 cm respectively so to find the third side you have to add the two sides of triangle and then substract it by perimeter to get the third side

like this

sides of triangle 42cm and 36cm

perimeter is 98cm

so 42 plus 36 is equal to 78cm

so to find third side 98cm-78cm which is equal to 20cm

so third side is 20 cm

to check

42 plus 36 plus 20will be equal to 98cm

if not then it's wrong