Isosceles 5711

An isosceles triangle with a base length of 32 cm has an area of 480 cm2. What's his perimeter?

Correct answer:

o =  100 cm

Step-by-step explanation:

a=32 cm S=480 cm2 h=2 S/a=2 480/32=30 cm b=h2+(a/2)2=302+(32/2)2=34 cm o=2 b+a=2 34+32=100 cm

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