Пошаговое объяснение:
1. Угол 1 =Угол 2, как внутренние односторонние углы => угол 2 = 35°
Угол 3 = 180 - угол 2 = 180-35= 145°
Угол 4= углу 2, как вертикальный => угол 4 = 35°.
2. Пусть угол 3 = х; угол 1 = у.
{х+у=180
{х-у= 80;
{х= 80+у
{80+у +у= 180;
{х= 80+у
{2у= 180-80;
{х= 80+у
{2у= 100;
{х= 80+у
{у=100÷2=50;
{у=50
{х=80+50=130.
Угол 3 = 130°; угол 1 = 50°
Угол 2 = 180- угол 3 = 180-130=50°
Угол 4= углу 2= 50°, как вертикальный.
3. СBM - прямоугольный треугольник, угол С=90°.
Угол CBK = 180-90- 50= 40°.
1 x 1 = 1
2 x 1 = 2
3 x 1 = 3
4 x1 = 4
5 x 1 = 5
6 x 1 = 6
7x1 =7
8 x1 = 8
9 x1 = 9
10 x 1 = 10
1x6 = 6
2 x6 = 12
3 x 6 = 18
4x 6 = 24
5x 6 = 30
6 x 6 = 36
7x6 = 42
8 x 6 = 48
9 x 6 = 54
10 x 6 = 60
1x 2 = 2
2 x 2 = 4
3 x 2 = 6
4 x 2 = 8
5x 2 = 10
6 x 2 = 12
7x2 = 14
8 x 2 = 16
9x 2 = 18
10 x 2 = 20
1x 7 = 7
2 x 7 = 14
3 x 7 = 21
4x7 = 28
5x7 = 35
6x 7 = 42
7x7= 49
8x7 = 56
9x7= 63
10 x 7 = 70
1x3 = 3
2 x 3 = 6
3 x 3 = 9
4 x 3 = 12
5 x 3 = 15
6 x 3 = 18
7 x 3 = 21
8 x 3 = 24
9 x 3 = 27
10 x 3 = 30
1 x 8 = 8
2x 8 = 16
3 x 8 = 24
4 x 8 = 32
5 x 8 = 40
6 x 8 = 48
7x8 = 56
8 x 8 = 64
9 x 8 = 72
10 x 8 = 80
1 x 4 = 4
2 x 4 = 8
3 x 4 = 12
4 x 4 = 16
5 x 4 = 20
6 x 4 = 24
7 x 4 = 28
8 x 4 = 32
9 x 4 = 36
10 x 4 = 40
1x9 = 9
2 x 9 = 18
3 x 9 = 27
4x 9 = 36
5x 9 = 45
6 x 9 = 54
7x9 = 63
8x9 = 72
9x 9 = 81
10 x 9 = 90
1x 5 = 5
2 x 5 = 10
3 x 5 = 15
4 x 5 = 20
5 x 5 = 25
6 x 5 = 30
7 x 5 = 35
8 x 5 = 40
9 x 5 = 45
10 x 5 = 50
1 x 10 = 10
2 x 10 = 20
3 x 10 = 30
4x 10 = 40
5x 10 = 50
6x 10 = 60
7 x 10 = 70
8 x 10 = 80
9 x 10 = 90
10 x 10 = 100
100%-73=27% третье число
480/100=4.8- это 1%
4.8*27=129.6