Question

find the area of triangle two sides of which are 8cm and 11cm and the perimeter is 32 cm

Answer 1

Perimeter = 2/given length
=2/8= 4


Perimeter= 2/given length
=2/11= 5.5

Perimeter= 2/ given length
=2/32= 16.

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Answer 2

perimeter of triangle =32 cm
1st side of the triangle =8 CM
2nd side of the triangle =11 cm
perimeter of the triangle = sum of all sides
so, 3rd side of the triangle =
8+11+3rd side = 32 cm
19cm + 3rd side=32 cm
3rd side =32-19 cm
= 13 cm
area of triangle = 1/2× base × height
1/2×13×8
52cm²