Question

Guys please do answer for this question please ... Those who answer i will make brainlist

Answer 1

Answer:

Step-by-step explanation

2.Given equal sides is 14 cm

Perimeter of the triangle is 40

We know Perimeter of the triangle is a+b+c

We know that two sides are 14

14+14+c =40. (C=another side)

28+c=40

C=40-28

C=12

The three sides of isosceles triangle is 14;14&12

The area of isosceles triangle is b(h)/2

(b=14&h=12)

14(12)/2

168/2

84

the area of isosceles triangle is 84

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Answer 2

Answer: perimeter =40

Each side =14

Third side =x

Perimeter of ∆= sum of all side

14 +14 +x=40

X =40-28

X=18

Area using herons formulae

S= 14+14+18/2

S= 20

√20(20-14) (20-14) (20-18)

√20 × 16×16×2

√2×10×16×16×2

16×2√10

32√10

Area = 101 . 192or 32√10