Answer:
a. 8
b. 61, 23, 84
Step-by-step explanation:
As we can see, point S is between points R and T, therefore:
- RS + ST = RT
- 7y + 5 + 2y + 7 = 14y - 28
- 9y + 12 = 14y - 28
- 14y - 9y = 12 + 28
- 5y = 40
- y = 40/5
- y = 8
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- RS = 7y+5 = 61
- ST = 2y + 7= 23
- RT = 14y - 28 = 84
Answer:
216 cm2
Step-by-step explanation:
The formula for the area of a triangle is (Base*height) divided by 2
so, (16*27) divided by 2 is 216
You can find the value of x using the trigonometric function of cosine.
cos x = adj/hyp
cos 49 = x/55
55(cos 49) = x
36.083 = x
Hope I am right :)
A <span>dodecagon has 12 triangles</span>
157. Because when you multiply 10 times 3.14 times 5 you get 157.