Answer:
B: 43.3
Step-by-step explanation:
Answer:
10m+21
Step-by-step explanation:
1) distribute "3"
3m+27+7m-6
3m+7m=10m
27-6=21
10m+21
Hope this helps!
Answer:
true
Step-by-step explanation:
5p-9=2p+12
5p-2p=12+9
3p=21
p=21/3
p=7
Answer:
Show ΔBCD ≅ ΔGFE, so ∠C ≅ ∠F. Base angle of an isosceles triangle are congruent, so ΔACF is isosceles.
Step-by-step explanation:
Informally, subtract DE from CE and DF. This will show CD ≅ EF.
Then ΔBCD ≅ ΔGFE by the HL theorem for right triangles.
Corresponding parts of congruent triangles are congruent, namely the angles C and F.
Since base angles of ΔACF are congruent, it is isosceles.
