R ide
er
8. Multi-Step Roland buys
baseboards for two rectangular
rooms. One room has side lengths of
5 meters and 7 meters. The second
room has side lengths of 6 meters
and 9 meters. How many meters of
baseboard does Roland buy?
es

answer is because 4×10=40

and 98×4= is 392

40,392

step-by-step explanation:

assume that you have 3 different side lengths.   apply the pythagorean theorem here:   square each of the two shortest sides; call them a and b, so that their squares are a² and b².   also square the longest side, calling the result c².

now, if a² + b² = c² is true, the triangle is a right triangle; otherwise it is not a right triangle.