The LCM<span> of 42 and 54 is 378.</span>
Answer:
Answer
Let the sides of triangles are 3x,4x and 5x.
And perimeter of the triangle is 144cm.
So , 3x+4x+5x=144
12x=144
x=12
so, the sides are triangle are 3(12)=36cm, 4(12)=48cm , 5(12)=60cm
so , the longest side is 60 cm.
Area of triangle =
s(s−a)(s−b)(s−c)
here , s=72 and a=36, b=48 c=60
=
72(72−36)(72−48)(72−60)
=
72(36)(24)(12)
=
746496
= 864
So, the area of triangle is 864 cm
2
and the height corresponding to longest side h=
60
2×864
=28.8cm
can you add a photo?
Step-by-step explanation:
The sum of the 3 outside angles of a triangle equal 360 degrees.
Add the equations together to equal 360:
x+8 + x +20 + 2x +12 = 360
Combine the like terms on the left side of the equal sign:
4x + 40 = 360
Subtract 40 from both sides:
4x = 320
Divide both sides by 4:
x = 80
Answer:
c
Step-by-step explanation:
If you put one side into your calculator the the other will be come otut