Sin OH Cosin AH Tangent OA search "SOCAHTOA"
Answer: x=80°
Explanation:
To find the exterior angle x we first need to find the last corner angle (a) of the triangle. The angles of triangles add up to 180° so we can use the formula: 25+55+a=180
Solving formula:
25+55+a=180
80+a=180
(Subtract 80 from both sides)
a=100°
Now that we know a=100 we can find the exterior angle. a+x=180 because the angles are on a straight line which equals 180°
a+x=180
100+x=180
(Subtract 100 from both sides)
x=80°
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Answer:
40 Stamps
Step-by-step explanation:
According to the scenario, given data are as follows,
Total stamp collected = 343
Stamps from Germany = 296
To estimate the stamps from other contact, we first round off the given number of stamps.
So, Total stamp collected = 340 ( Rounded off)
Stamps from Germany = 300 ( Rounded off)
So, Stamps from other contact = 340 - 300 = 40 stamps
Answer:
The mean is 18
Step-by-step explanation:
