Try out this website or search "surface area of a triangular prism" in Google
http://www.ck12.org/geometry/Surface-Area-of-Triangular-Prisms/lesson/Surface-Area-of-Triangular-Pri...
Answer:
154.10 Feets
Step-by-step explanation:
Given the following :
Height (h) of cliff = 320 feet
Angle of depression of near side = 16.5°
Angle of depression of far side = 10.5°
Using trigonometry :
We can obtain x and y as shown in the attached picture :
Tanθ = opposite / Adjacent
Adjacent = height of cliff = 320 Feets
For the near side :
Tanθ = opposite / Adjacent
Tan (16.5°) = x / 320
0.2962134 = x / 320
x = 0.2962134 * 320
x = 94.788318 Feets
For the far side :
Tanθ = opposite / Adjacent
Tan (10.5°) = x / 320
0.1853390 = x / 320
x = 0.1853390 * 320
x = 59.308494 Feets
Length of island = (59.308494 + 94.788318) feet
= 154.10 Feets
Answer: 2880
Step-by-step explanation: 144*20=2880 calories.
Answer:
QR=8
QU=76
Measure of arc ST=114°
Measure of arc QR=114°
Measure of arc XT=57°
Step-by-step explanation:
Given that,
YU=YV
ST=16
mQS=34
mRT=98
We will use pythagoras theorem,
QR=8
QU=76
QR=ST
Since they span the same arc, let the arc be x.
360 - QS - RT = QR + ST
Recall that QR=ST
360 - 34 - 98 = x + x
228 = 2x
Divide both side by 2
X= 228/2
X=114°
Therefore, the measure of the arc ST and the arc QR=114°
Measure of span of arc XT will be:
= 1/2× (arc ST)
= 1/2 × 114
= 57°