Answer:
a. Find the sum of ratios:
1+2+3 = 6
Divide to the internal angle (180)
180/6 = 30
Multiply to the ratios
1*30 = 30 degrees
2*30 = 60 degrees
3*30 = 90 degrees
ANSWER: The measure of angles are 30,60, and 90 degrees
b. Find the sum of ratio
2+5+6 = 13
Divide to the perimeter
65/13 = 5
2*5 = 10 cm
5*5 = 25 cm
6*5 = 30 cm
ANSWER: The measure of sides are 10,25,30 cm
a. The measure of all the angles of a triangle = 180°
1x + 2x + 3x = 180°
6x = 180°
6x/6 = 180°/6
x = 30
Angle 1 = 30 * 1 = 30°
Angle 2 = 30 * 2 = 60°
Angle 3 = 30 * 3 = 90°
30° + 60° + 90° = 180°,
It is proved that 30°, 60°, 90° are the three measures of the three angles of the triangle.
b. Perimeter = 65cm
Ratio of sides = 2:5:6
So, let us add the numbers to know the total number: 2 + 5 + 6 = 13
the ratio of the sides is: 2/13, 5/13 and 6/13
2/13 × 65 = 130/13 = 10
5/13 × 65 = 325/13 = 25
6/13 × 65 = 390/13 = 30
10 + 25 = 35 + 30 = 65
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Answers & Comments
Answer:
a. Find the sum of ratios:
1+2+3 = 6
Divide to the internal angle (180)
180/6 = 30
Multiply to the ratios
1*30 = 30 degrees
2*30 = 60 degrees
3*30 = 90 degrees
ANSWER: The measure of angles are 30,60, and 90 degrees
b. Find the sum of ratio
2+5+6 = 13
Divide to the perimeter
65/13 = 5
Multiply to the ratios
2*5 = 10 cm
5*5 = 25 cm
6*5 = 30 cm
ANSWER: The measure of sides are 10,25,30 cm
Answer:
a. The measure of all the angles of a triangle = 180°
1x + 2x + 3x = 180°
6x = 180°
6x/6 = 180°/6
x = 30
Angle 1 = 30 * 1 = 30°
Angle 2 = 30 * 2 = 60°
Angle 3 = 30 * 3 = 90°
30° + 60° + 90° = 180°,
It is proved that 30°, 60°, 90° are the three measures of the three angles of the triangle.
b. Perimeter = 65cm
Ratio of sides = 2:5:6
So, let us add the numbers to know the total number: 2 + 5 + 6 = 13
the ratio of the sides is: 2/13, 5/13 and 6/13
2/13 × 65 = 130/13 = 10
5/13 × 65 = 325/13 = 25
6/13 × 65 = 390/13 = 30
10 + 25 = 35 + 30 = 65