Question

find the area of isocalese triangle whose equal side 15 and third side is 20
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Answer 1

Answer:

150

Step-by-step explanation:

area of triangle=1/2*base*height

=1/2*15*20

=1*15*10

=150

Answer 2

Answer:

Step-by-step explanation:

First we find the semi-perimeter.

S= 15+15+20cm/2

=25cm

LET a,b and c are sides of isosceles triangle.

Area of isosceles triangle = √s[(s-a)(s-b)(s-c)]

√25×5×10×10cm⁴

50√5 cm²

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