Answer:
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Step-by-step explanation:
Answer:
P = 57°
Step-by-step explanation:
Given the following :
PQ = 17
QR = 15
PR = 14
Using the cosine formula since the length of the three sides are given:
a2 = b2 + c2 – 2bccos(A)
To find P:
QR^2 = PQ^2 + PR^2 – 2(PQ)(PR)cos(P)
15^2 = 17^2 + 14^2 – 2(17)(14)cos(P)
225 = 289 + 196 - 476 cosP
476*CosP = 485 - 225
476*CosP = 260
CosP = 260/476
CosP = 0.5462184
P = Cos^-1(0.5462184)
P = 56.892029
P = 57°
First of all you are going to want to google the way to solve that area of a triangle. Solve the triangles area. then find the area of the rectangle and add all of your answers to get the over all area.
If it’s silver and greater than 1 it would be a quarter
Answer:
4800
Step-by-step explanation:
length = 20mm X 3 = 60mm
width = 20mm X 4 = 80mm
area = length X width = 60 X 80 = 4800 m
I hope it helps you!