Answer :
here, triangle is a right triangle [ 3-4-5 is a pythagorean triple]
take a side langhts of triange as 3x, 4x , 5x
circle raidius is 6 and so..
5x = r
x = 6
5
so area of the triangle is= 1 * 3x * 4x
2
= 1 * 18 * 24
2 5 5
= 216
25
= 8.64
take a side langhts of triange as 3x, 4x , 5x
circle raidius is 6 and so..
5x = r
x = 6
5
so area of the triangle is= 1 * 3x * 4x
2
= 1 * 18 * 24
2 5 5
= 216
25
= 8.64
Answer:
Step-by-step explanation:
sum of angles of triangle is 180 degree
Triangle with sides in the ratio is 3:4:5
3x+4x+5x=189
12x=180
x=180/12
x=15
3x =3×15=45degrees
4x=4×15=60degrees
5x=5×15=75 degree
let ABC be triangle
AB =15cm
BC=60cm
CA=75cm
BC be base of triangle
AB be height
area of triangle =1/2×base×height
=1/2×60×15
=450cm