Isosceles triangle

The circumference of the isosceles triangle is 32.5 dm. Base length is 153 cm. How long is the leg of this triangle?

Correct answer:

r =  8.6 dm

Step-by-step explanation:

o=32.5 dm a=153 cm dm=153/10  dm=15.3 dm  o=a+2r r=(oa)/2=(32.515.3)/2=435=435 dm=8.6 dm

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