Shari's class is making team pennants for an upcoming field day. They cut the pennants out of a large sheet of paper in the patt
ern shown below. The area of the whole pattern is 1600 \text{ cm}^21600 cm
2
1600, start text, space, c, m, end text, squared. They need to know the length of the pennant base.
The hypotenuse and the "leg" are congruent...along with the 90 degree angle.
"The HL Postulate states that if the hypotenuse and leg of one right triangle are congruent to the hypotenuse and leg of another right triangle, then the two triangles are congruent." - Calcworkshop
