The perimester of an isosceles triangle is 42cm .The ratio of the equal side to its bose is 3:4 find the area.
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The perimester of an isosceles triangle is 42cm .The ratio of the equal side to its bose is 3:4 find the area.
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Answer:
Area of triangle is 78.893 cm².
Verified answer
Step-by-step explanation:
Perimeter = Sum of all side
42cm = 3x+4x+x
42cm= (3+4)x
42cm= 7x
42/7=x
x=6
hence, the length of two equal length = 3*6=18cm
4*6=24cm
To Find the area of triangle =1/2*base *height