Expand (2 +13)(1 +13) Give your answer in the form c +d/3 where c and d are integers.

5 + 3

Step-by-step explanation:

(2 + )(1 + )

Each term in the second factor is multiplied by each term in the first factor , that is

2(1 + ) + (1 + ) ← distribute parenthesis

= 2 + 2 + + 3 ← collect like terms

= 5 + 3

so the possibilities of the measurement of the side of the triangle are either it is longest side or not the longest side

when it is the longest side

s < 25 + 35s < 60

if it is not the longest side

35 < 25 + s10 < sso 10 < s < 60so the perimeter70 < p < 130