n a right triangle, the length of the hypotenuse is 15 cm and one of the sides is 9 cm. Then the
semi perimeter is --------------cm.
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18cm
Step-by-step explanation:
h=15cm
hight =9cm
h²= √hight²+base²
15²=9²+base²
225=81+base²
base²=225-81
base²=114
base=√144
base=12cm
perimeter=hight+base+hypotenuse
perimeter=9+12+15
perimeter=36cm
semiperimeter= perimeter/2
semiperimeter=36/2
semiperimeter=18cm
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