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ac²=24²+7²
ac²=576+49
ac²=625
ac=25
ag²=ac²+cg²
cg=bf
ag²=25²+15²
ag²=625+225
ag²=850
ag=5√34
b. AG = √(AC²+CG²)=√(25²+15³)=√(625+225=√850=5√34 cm