Answer:
Step-by-step explanation:
135=1/2h(6+9)
135=1/2h(15)
135=7.5h
h=18
1/2*18 is 9
15*9 is 135
Answer:
26-33-40-47-54-61-68-75-82-89-96
Rectangles that are 5×20, 6×12, or 8×8 will satisfy your criteria. The sum of the areas of those is 236 units².
_____
20×5 and 12×6 rectangles are also "cool", but their areas are not different from those already counted.
Answer:
Step-by-step explanation:
Pay attention to order of vertices when comparing the congruent parts or figures.
C and D as well as B and E are corresponding vertices according to angle marks and side marks.