Answer:
190 for the rectangle
24.4 for triangle
Step-by-step explanation:
a^2+b^2=c^2
7.8^2 +b^2 = 10^2
100 - (7.8^2) = 39.16
√39.16 =6.258
6.258 * 7.8 = 48.8124
^ divide by two because it's a triangle =
24.4062 = 24.4
