If the area of isosceles triangle is 12cm² if base is 8 cm find its height and perimeter
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Answer:
18 cm
Step-by-step explanation:
Area of triangle ABC =1/2*b*h
12cmsq=1/2*8*h
12*2=8h
24/8=h
3cm=h
Therefore,
h=AD=3cm
In triangle ADB
H sq.=P sq. + B sq.
H sq.=AD sq + BD sq.
H sq.=9+16
H sq.=25
H=√25
H=5
Perimeter of triangle ABC=AB+BC+CA
5cm+8cm+5cm=18cm
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Answer:
18 cm
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