the sides of a triangle are 20cm, 50cm and 50cm.the area of the triangle is 210√6cm is true or false
Answers
Answered by
0
Answer:
True (200√6cm^2)
Step-by-step explanation:
Area of a triangle (Using Heron's formula) = √s(s - a)(s - b)(s - c)
Let us take a as 20cm, b as 50cm and c as 50cm.
a + b + c = Perimeter
20 + 50 + 50 = 120cm
s = a + b + c/2
s = 120/2
s = 60cm
s - a = 60 - 20 = 40cm
s - b = 60 - 50 = 10cm
s - c = 60 - 50 = 10cm
Area of a triangle: √s(s - a)(s - b)(s - c)
= √60*40*10*10
= √3*2*10*2*2*10*10*10
= 10*10*2√3*2
= 200√6cm^2
Similar questions