Question

the semi perimeter of an isosceles triangle is 21 cm and its base is 3/2 of its equal sides find the length of each side and area of triangle

Answer 1

semi perimeter of isosceles triangle equal to 21 CM.
so perimeter of isosceles triangle equal to 42 CM.

let the length of equal side of traingle be X.
so, length of the base of traingle be 3/2X.
perimeter of the traingle equal to sum of all sides.

X+X+3/2X=42.
(2X+2X+3X)/2=42.
7X/2=42.
X=42*2/7.
X=12.

sides of triangle is 12 CM
basic of triangle equal to 18 CM.

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Answer 2

Answer:

the triangle= 18 cm

Step-by-step explanation:

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