Answer:
42.4
Step-by-step explanation:
1) use this formula of Area of the triangle:

2) using the formula described above:
A=0.5*14*11*0.55≈42.4 (mm²)
Answer:
Step-by-step explanation:
In ΔBCA and ΔDCA,
BC ≅ CD Given
∠BCA ≅∠DCA Given
AC ≅ AC Reflexive property
ΔBCA ≅ ΔDCA S A S congruent
∵ BA ≅ AD CPCT {Corresponding part of congruent triangle}
People keep saying its 21 but I know from my brainily skills that it is 18
Answer:
D
Step-by-step explanation:
Note that you have to multiply each side of the small triangle by 4 to get the same measurement of the large one.