8.
a) The ratio of the sides of a triangle is 3: 4:5 and its perimeter 12cm. Find the area of the
triangle
Answers
Answered by
1
perimeter of a triangle = sum of all sides
12=3x + 4x +5x
12=12x
12/12=x
1=x
thus, 3x=3×1=3 cm
4x=4×1=4 cm
5x=5×1=5 cm
Area= 1/2×b×h
=1/2×3×4
=6cm²
12=3x + 4x +5x
12=12x
12/12=x
1=x
thus, 3x=3×1=3 cm
4x=4×1=4 cm
5x=5×1=5 cm
Area= 1/2×b×h
=1/2×3×4
=6cm²
Answered by
1
hope the solution helps u....
Attachments:
Similar questions