Answer:
22
Step-by-step explanation:
Circumference = diameter * pi = 22 * pi
To Prove: ΔEFI ~ Δ GFH
Proof:
When two triangles are similar, their corresponding sides are Proportional and their corresponding interior angles are equal.
Two Triangles can be proven similar by following Similarity Criterion.
1. AA
2.SSS
3.SAS
→∠EFI=∠GFH-------[Vertically Opposite angles]
The Other statement which is needed to prove that triangles EFI and GFH are similar is
Option C:→ ∠E ≅ ∠G
So, Two triangles ΔEFI and Δ GFH are Similar by Angle-Angle(AA) Criterion.
12√18-6√20-3√50-8√45
<em>*Break each radical up into the product of a radical of a perfect square and a second radical*</em>
12(√9*√2)-6(√4*√5)-3(√25*√2)-8(√9*√5)
<em>*Simplify the radicals*</em>
12(3√2)-6(2√5)-3(5√2)-8(3√5)
<em>*Distribute*</em>
36√2-12√5-15√2-24√5
<em>*Combine like terms</em>*
21√2-36√5
Hope this helps!!
Answer:
L= 11
Step-by-step explanation:
Formula to find the length when you know the area:
L = A/W
So the equation for this one is:
L = 93 1/2 ÷ 8 1/2
Simplify:
L = 11
To be sure of your answer you multiply the L x W = A
11 x 8 1/2 = 93 1/2
Hope this helped : D
Plug in 
to each 
in the function.
Hope this helps.
頑張って!
