Question

its perimeter
triangle side is 12 and 10cm​

Answer 1

Answer:

let x be the langth of the third side

peri. of triangle=sum of all three sides of triangle

35=10+12+x

35=22+x

35-22=x

therefore, x= 13cm

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

Perimeter of triangle is = a+b+c

Triangle side is as given

12 and 10 cm

1. 12 +10cm =22cm
2. Now find c.
3. C=22×c
4. Now take x as common
5. X=22×c+ 12 cm + 10 cm
6. C=(22+12+10) (cm+cm+x)
7. C=42 and cm + cm + x
8. Cm²+x =Cm²x
9. C= 42cm²x
10. 42cm²x

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