Question 1)
there’s 180 degrees in a triangle
70 + 70 = 140
180 - 140= 40
A= 40
question 2)
there’s only one line of symmetry, down the middle
Answer:
Answer:
Step-by-step explanation:
» x and y can only be got through using trigonometric ratios:
✍ <u> </u><u>For</u><u> </u><u>x</u><u> </u>:

✍ <u> </u><u>F</u><u>o</u><u>r</u><u> </u><u>y</u><u> </u>:

Answer:
The correct answer is 20, 2, and 10
Step-by-step explanation:
10×2=20
2×10=20
20×1=20
The sine of 30° is 0.5 .
Angles don't have y-values, and neither do their sines. But
IF you draw a graph of the sine function, AND the angles
(the independent variable) are marked off on the x-axis of
the graph, AND the value of the sine function of each angle
(the dependent variable) is marked off on the y-axis of the
graph, THEN the y-value corresponding to the angle of 30°
would be displayed as 0.5 .