Point B is used for both triangles and is located in the same place, which means triangle ABC was rotated at point B
Then triangle ABC was reduced in size to make DBE, which is called a dilation.
The first drop down should be Rotation and then dilation.
The second drop down should be Similar.
Answer:mr clark
Step-by-step explanation:
First lets add the 2 distances on the map:
3 3/4 + 5 1/4 = 9 inches ( 3/4 + 1/4 = 1, 3+5 = 8, 8+1 = 9 )
1/2 inch on the map = 4 miles
there are 2 1/2 inches to 1 inch so 4 miles x 2 = 8 miles to 1 inch
so now multiply 9 inches x 8 miles = 72 total miles
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1.
You can use the sine rule
a / sinA = b / sinB
Substitute the values in:
15 / sin112 = b / sin33
Multiply both sides by sin(33) to get b by itself
b = (15 / sin112) x sin33
Calculate this to get your answer of:
BC = 8.8 cm
2.
You can also use the sine rule here
sinA / a = sinB / b
Sub your values in:
sin84 / 32.4 = sin(y) / 21
Multiply both sides by 21 to isolate sin(y)
(sin84 / 32.4) x 21 = sin(y)
Calculate sin(y)
sin(y) = 0.6445975248
You now need to sin-1 this value to get u:
y = 40.13550596
To 1d.p, y = 40.1 degrees
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Well it really depends what u r solving for. So for perimeter u could add both X’s so 2x, and then add 10+2 which is 12. So it would be 2x+12. Not 100% right but I tried hope this helps and good luck!