Question

(INSTANT ASAP) A canvas pennant is in the shape of an equilateral triangle. If each side of the pennant measures 16 inches, what is the area of the pennant?

A.111
B.128
C.232
D.256

Answer 1

For this case, the area is given by:
A = root ((s) * (s-a) * (s-b) * (s-c))
Since the triangle is equilateral then:
a = b = c = 16
On the other hand,
s = (a + b + c) / 2
s = (16 + 16 + 16) / 2
S = 24
Substituting values:
A = root ((24) * (24-16) * (24-16) * (24-16))
A = 110.8512517
Rounding off we have:
A = 111
Answer:
the area of the pennant is:
A.111