Answer :
A. The perimeter, P, of a rectangle is the sum of twice the length and twice the width.
answer
1. P = 2(l+w) units
2. P = 2(5)+2(9) units
4. P = (l+l)+(w+w) units
B. The area, A, of a triangle is one-half the product of the triangle's base and height.
answer
2. A = 1/2(12)(5)
3. A = 1/2(b*h)
answer
1. P = 2(l+w) units
2. P = 2(5)+2(9) units
4. P = (l+l)+(w+w) units
B. The area, A, of a triangle is one-half the product of the triangle's base and height.
answer
2. A = 1/2(12)(5)
3. A = 1/2(b*h)