The answer is 52.
20+52=72
Number one: Just plot down on the number like the numbers you have. Just took the test for this.
52+23=75
10+78=88
88+75=163
that's one way
Answer:
B
Step-by-step explanation:
Formula: 4*((15*7)/2) + 15^2
This is the area of the four triangles combined (210 cm^2) plus the area of the square (225 cm^2)
