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Among the choices above the statements is true about the triangles below triangle JKN is congruent to triangle LKM by SAS. The answer is D.
Answer:
SA = LA + 2B
Step-by-step explanation:
find the area of bases, 2(.5*6*8)=48
find area of rectangles (LA) , (17*8)+(17*8)+(17*10)
Add everything for SA
Answer:
Step-by-step explanation:
Use <u> law of cosine</u> to calculate the other side.
c² = a² + b² -2ab Cos C
Here, c is the length of the side which is opposite side to ∠E
a = 29 ; b = 25 and C = 109
c² = 29² + 25² - 2*29*25*Cos 107
= 841 + 625 - 1450* (-0.2923)
= 1466 + 423.835
= 1889.835
c =√1889.835
c = 43.47 ≈ 43
No, find ∠D using again use <u>law of cosine</u>
<u></u>
β = ∠C = 34°
α = 180 - (34 +107)
α = ∠D = 39
Other angles are
∠C = 34° and ∠D°39
Answer:
Let S be the total surface area. Then
h = ( S - 2 Pi r^2) / ( 2 Pi r)
Discussion:
Let S be the total surface area. Then
S = 2Pi r*h + 2 Pi r^2 => subtract 2 PI r^2 from both sides
S - 2 PI r^22 = 2 PI r*h => divide both sides by 2 PI r
h = ( S - 2 Pi r^2) / ( 2 Pi r)
Thank you,
MrB
Step-by-step explanation: