4. Find area of triangle ,two
the sides of which are 8 cm
and 11 cm and the perimeter is
32 cm.
8 sq. cm
30 sq. cm
38 sq cm
Answers
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1
Answer:
8 cm²
Step-by-step explanation:
Perimeter = 32 cm
sides = 8 cm, 11 cm, 13 cm
we will find the area by herons formula,as it is a scalene triangle
√s*(s-a)(s-b)(s-c)
√16(16-8)(16-11)(16-13)
√16*8*5*3
√2*2*2*2*2*2*2*5*3
8√30 cm²
8 cm²(approx)
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