Question

24.
If the sides of a triangle are 15 cm, 17 cm and
8 cm, then its area is cm2
Full Marks : 1
a. 20
b. 40
c.60
d. 80​

Answer 1

Answer:

Answer: 60

Step-by-step explanation:

s=(8+15+17)/2=20. =4*5*3=60cm^2.

~ Nikita Budhwani

Answer 2

Area of the triangle,

A = 60cm²

Given :-

a = 15, b = 17, c = 8

s = (a+b+c)/2

= 40/2

= 20

A = √[s(s-a)(s-b)(s-c)]

= √[20(20-15)(20-17)(20-8)]

= √(20)(5)(3)(12)

= √(4×5×5×3×4×3)

= 5×3×4

= 60cm²