hey guys pls help me with this<br />THE BASE OF AN ISOSCELES TRIANGLE IS 24cm and the area is 192sq.cm. find the perimeter. <br />
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Answer:
64cm
Step-by-step explanation:
Base=24cm
Area=192sq. cm
Perimeter=?
let us first find the height of the triangle
area of Δ=1/2 X base X height
192sq. cm= 1/2 X 24 X height
height= 192 / 12
height= 16cm
The height of the triangle is also it's meridian i. e it divides it into 2 equal halves.
To find the other two side of the triangle=
by using the pythogorous theoram
In ΔABD
H²= A²+B²
x²= 16²+12²
x=20cm
we know that two the sides of isocles Δ are equal. so it's perimeter is=
24+20+20=64cm
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