Answer:
all three sides are congruent.
Step-by-step explanation:
it is equiangular.
sides are equal.
angles are equal.
all three sides are congruent.
So five times five is twenty five. Then do three times fifteen which is forty five.
25+45=70
3 feet 8 inches converted to inches is 3x12+8=44inches
44inches times 4 pieces is 176 inches.
176 inches converted back to feet and inches is 176/12=14 feet 8 inches so he would need 15 feet of board
