Math, asked by jana13, 1 year ago

The perimeter of a triangle is 12cm and it's hypotenuse is of 5cm find it's area and calculate the sides

Answers

Answered by sciencework
3
perimeter 12
sum of other two sides other than hypotenuse is 12 - 5 = 7 3 + 4 = 7 according to the triplet Pythagoras Theorem 345 area will be equal to 6 CM square this can be calculated using heron's formula hope this helps you!!!

sciencework: please mark as brainliest!!****
jana13: No
sciencework: why
sciencework: i used herons formula
Answered by RAMAN001
3
here you go ☆☆

let triangle be ABC

perimeter of ABC = 12

AB + BC + CA = 12

Let the two sides of the triangle be x and y.

x + y + 5 = 12 _________(1)
x^2 +y^2 = 5^2 _________(2)

y = 7 - x _________ (3)

Substituting:(3) in (2)

x^2 + (7 - x)^2 = 25

x^2 + 49 - 14x + x^2 = 25

2x^2 - 14x + 24 = 0

2(x^2 - 7x + 12) = 0

2(x - 3)(x - 4) = 0

x = 3 and 4

The two sides measure 3 and 4cm.

The area is given by A = (B x H)/2 where B and H are the two sides .

A = (3 x 4)/2

A = 6 square centimetres.

In summary:

The triangle has sides of 3, 4 and 5 centimetres. The area is of12" cm"^2

hope it helps you........

RAMAN001: did u get it ..........
RAMAN001: or not....
jana13: No
RAMAN001: it's so simple...
RAMAN001: here we use substitution method for reducing two variables to one variable....
jana13: I want herons formula method bro
RAMAN001: area of triangle is also 1/2× base × height.....
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