1.

2. The perimeter of an isosceles triangle is 42 cm andits base is 1.5 times each of the equal sides. Finda) the length of each side of the triangle b] the areaof the triangle c] the height of the triangie.​

Answer»

Step-by-step EXPLANATION:

Let the side of the isosceles triangle be x

GIVEN

3/2 x +x +x=42cm

3x/2 + 2x =42

(3x+4x)/2=42

3x+4x=84

7x=84

x=12cm

side=12cm BASE=18cm

The height(altitude) of an ISOS. triangle divides it into two rt triangles

in a rt. triangle, base²+height²=hypotenuse²

thus, 9²+h²=12²

h=√12²-9²

=√144-81   =√63   =3√7cm

area =1/2 x base x height

        =1/2 x 18 x3√7  

          27√7 cm²

HOPE YOU GOT THIS IF YES THEN BE THE FIRST TO MARK IT AS THE BRAINLIEST FOR SURE ..!!!



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