Arectangular banner is 5 inches longer than its width. a triangular poster is 3 times as long as its height. both the poster and the banner has an area of 24 square inches. part a: what is the height and base of the poster? justify your answer. part b: what is the length and width of the banner? justify your answer.

Part A

For the triangle

A=(B*h)/2   A=24

B=3*h

3*h^2=48   h^2=16  h=4      B=3*4  B=12

 the height and base of the poster are h=4 and B=12 respectively

 Part B

For the rectangle

Area A=L*W

Only positive W values make sense here

circumference divided by 3.141592654 then timesthe radius twice

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice