Answer:
896pi or 2814.9cm^2
Step-by-step explanation:
S=h*r*2pi=(40-2*4)*28/2*2pi=32*14*2pi=896pi=2814.9cm^2
Calculate out how many times the denominator goes into the numerator. To do that, divide 234 by 8 and keep only what is to the left of the decimal point:
(2 x 100,000) + (7 x 10,000) + (9 x 100) + (5 x 10) = 270,950
Answer:
1. it is given
2. the definition of angle bisector
3. the reflexive property
4. SAS
5. corresponding parts of congruent triangles are congruent