basically write the triangle in degree language like this is a acute angle because this is a 70* degree angle and talk more
Answer:
The two parallel sides a and b are 17 cm and 23 cm respectively
Step-by-step explanation:
Area of a trapezium = {(a+b)/2} h
Where
h = height = 18 cm
a = parallel side 1 = x
b = parallel side 2 = x + 6
Area of a trapezium = {(a+b)/2} h
360 = {(x + x + 6) / 2} 18
360 = { (2x + 6) / 2} 18
360 = (2x + 6) 9
360 = 18x + 54
Subtract 54 from both sides
360 - 54 = 18x
306 = 18x
Divide both sides by 18
x = 306 / 18
= 17
x = 17 cm
a = parallel side 1 = x
x = 17 cm
b = parallel side 2 = x + 6
x + 6
= 17 + 6
= 23 cm
Answer:
Step-by-step explanation:At the start of the question the population of the lake was 60 fish 1 year ago.
In one year the population dropped 25%.
25% of 60 is 15.
60 minus 15 equals 45
B) 28×50, then take the answer - 1100
Answer:
2!!!
Step-by-step explanation:
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