SOLUTION: If a given triangle of abc has the sides of a={{{ 7 }}}, b={{{ 9 }}} and c={{{ 12 }}}. Then what's area of this triangle? A.) {{{ 378 }}} B.) {{{ 31.3 }}} C.) {{{ 62.6 }}} D.)

SOLUTION: If a given triangle of abc has the sides of a={{{ 7 }}}, b={{{ 9 }}} and c={{{ 12 }}}. Then what's area of this triangle? A.) {{{ 378 }}} B.) {{{ 31.3 }}} C.) {{{ 62.6 }}} D.)

Algebra.Com

Question 1068737: If a given triangle of abc has the sides of a=, b= and c=. Then what's area of this triangle?
A.)
B.)
C.)
D.)
TY.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Use Heron's Law.
======
PS You're wasting your time putting braces around the numbers.

RELATED QUESTIONS
What is the area of (triangle)ABC if a=8; b=6; and sin C=0.75? a) 18 b) 72 c)9 d)36 (answered by richard1234)

If each of side of a triangle has a different lengths, and the lengths of two sides are (answered by jim_thompson5910)

A triangle ABC has its right angle at C and the vertices A(3, 8) and B(9, 5) . If no... (answered by ikleyn,math_helper)

A triangle has the same area and base as a rectangle. If the rectangle height is 6 cm,... (answered by nerdybill)

if the side of an equilateral triangle are given by (2a-b-3),(a-b+1) and (2a-2b-1),then... (answered by Alan3354)

Triangle ABC has sides measuring 2, 3, and r.Which of the following is a possible value... (answered by themathtutor2009)

If the sides of an ABC triangle are, a=5,b=6, and c=7, what is the value of angle... (answered by math_tutor2020)

if A(1,5), B(3,-2), and C(-3,0), find the measure of the sides of triangle ABC. Then... (answered by venugopalramana)

Given A (-3, 2), B (2, 7) and C (8, 10), find the area of the triangle... (answered by richwmiller,Alan3354)